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WOOPKER

AK45Pro Stereo Audio Amplifier,400W 2Channel Bluetooth 5.0 | Stereo Receivers with FM, AUX, USB, SD, MIC Inputs,for Home Theater Speakers, Karaoke,Garage

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Sep 11
Order within 22 hours and 51 minutes
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Features

  • Powerful Sound & Compact Size:This home audio amplifiers maximum power 400W+400W peak powerand RMS 50WX2 rated power, Its compact size design fits easily into your bookshelf or on desktop.It sounds mellow,clear and clean with great sound quality.Ideal for small apartments, bedrooms, small offices, basements and garages
  • Multiple Input Modes : The mini stereo amplifier home audio supports multiple external signal sources: connecting to music streaming devices such as computers/mobile phones/laptops via Bluetooth, RCA and MIC inputs. Amp also supports microphone, USB port, SD card
  • Bass & Treble Control:The 2.0 channel home stereo amplifier with microphone volume, bass, treble, and master volume control knobs for finer adjustment of sound effects, fun and playable. The included remote control allows you to enjoy different music and sounds from your couch(Note: Remote control uses AAA batteries; please purchase separately.)
  • MIC & USB/ SD Card Input:The audio amplifier for speakers supports USB stick or SD card input, plug and play. Equipped with 2 microphone input jacks, you can carry a microphone to sing with your friends and family at parties
  • Wide Application:The AK45 Pro power amplifier home audio compatible with mobile phones, computers, tablets, notebooks,MP3, and projectors with AV audio etc . Recommend for home TV audio, computer audio system-game, tower Speaker, garden speaker. Small simple compact design also for car audio system

Description

The stereo amplifier features 400Watts peak power,50 Watts*2 rated power and 2.0 channels, suitable for your karaoke, home theater, acoustic sound system. 2 microphone inputs increase the entertainment of the AMP. Let you enjoy a cheerful karaoke party time anytime, anywhere! Professional stereo receiver equipped with Bluetooth wireless music streaming, wireless range 32FT/10M. You can control the microphone volume, bass, treble and master volume allowing you to enjoy better sound. Suitable for your home theater sound system. 2 Microphone Inputs - start your family gatherings and karaoke party time anytime. Suitable for studio, garages or auxiliary entertainment areas. Suitable for home theater, garage, pool party, supermarket broadcasting etc. Easy to fit your audio system with Bluetooth and RCA input. The power amplifier is connected correctly, why is there noise such as electric current? Please check whether there is current sound when no load. And confirm that the surrounding current signals will not cause interference. Please make sure all the cable completely pushed into the device, incompletely connections will create distorted. Can bluetooth function and wired connection be used simultaneously? Please note that the Bluetooth function and the wired function cannot be used at the same time, so when you want to use the amplifier via the Bluetooth function, do not connect any devices to the jacks (except the microphone jack). Can you connect two devices with bluetooth? No, connecting two at the same time will cause the audio stream to be disrupted. It can only be disconnected and then connected to other devices. If you find that the Bluetooth connection is unstable, you can try the following steps to solve it. Make sure there are no obstacles (especially metals) blocking the signal. Turn off the power amplifier, disconnect and clear the connection of the Bluetooth transmitting device, and try to reconnect. Why only one channel work ? Is it defective? Since the amplifier is not used alone, it needs to be used together with other electronic equipment, so it needs to be ruled out one by one! Are the positive and negative wires connected to the speaker connected together? We believe that good service is almost as important as the product itself! WOOPKER - Since 2015 we are constantly working on higher quality audio amplifiers and video equipment. Our vision is to provide every consumer with affordable and excellent products, so that our customers can enjoy music and life! Join Woopker on this unique audiovisual journey!

Brand: WOOPKER


Connectivity Technology: ['RCA, USB']


Controller Type: Hand Control


Special Feature: RCA, Built-In Bluetooth, Bass, Treble,Volume Control, Microphone Inputs


Compatible Devices: Smartphone,Computers,Television, CD Player, Tablet, Passive Speakers


Connector Type: RCA


Audio Encoding: Windows Media Audio (WMA)


Audio Output Mode: Speakers


Surround Sound Channel Configuration: 2.0 Channel


Color: Black


Connectivity Technology: ['RCA, USB']


Controller Type: Hand Control


Other Special Features of the Product: RCA, Built-In Bluetooth, Bass, Treble,Volume Control, Microphone Inputs


Compatible Devices: Smartphone,Computers,Television, CD Player, Tablet, Passive Speakers


Connector Type: RCA


Audio Encoding: Windows Media Audio (WMA)


Audio Output Mode: Speakers


Surround Sound Channel Configuration: 2.0 Channel


Output Power: 100 watts


Wattage: 100 watts


Number of Channels: 2


Output Wattage: 800 watts


Control Method: Remote


Audio Output Type: Speakers


Format: WAV, WMA


Wireless Technology: Bluetooth


Brand: WOOPKER


Model Number: AK45 Pro


Manufacturer: Jieyang Rongcheng District Baitong Electronics Factory


Unit Count: 1 Count


Built-In Media: 1X Audio Amplifier, 1X Power Cable, 1X Remote Control (Note Remote control uses AAA batteries; please purchase separately.), 1X User Manual


Mfr Part Number: AK45 pro


Warranty Description: 1 Year


Item Dimensions D x W x H: 7.1"D x 2.5"W x 5.5"H


Item Weight: 890 g


Color: Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Love it! Works well and exactly as described.
I am by no means an audiophile, but what I do know is the speakers that came with my 28 year old JVC bookshelf system are far better than any standalone Bluetooth speakers that I could afford. Unfortunately, time won out over the JVC receiver as the electronics slowly fizzled, meaning my Bluetooth dongle setup was no longer going to be an option for computer audio. Enter this little black box. It was the only one in this price range I could find that had clip & wire speaker inputs - I wasn't ready to spend a ton of money on something that I wasn't sure would even work. Well, it works *beautifully.* Hooked up the speakers, connected the Bluetooth, and I've got my lovely old speakers back and sounding amazing. If you ARE an audiophile, there's not much in the way of adjustments on this thing, you have a bass knob, treble knob, and volume. It's fine for my everyday needs, but if you're really particular about your sound, you'll want to run an equalizer app on your device. It's plenty loud. I've not even tried to max out the volume because I like having eardrums. The only very minor complaint I have is that the remote is not the greatest, if it's not in a straight line with the unit then it's slow to respond. It still works, though. Not enough of a hassle for me to downgrade my review. Added bonus - the built-in FM receiver works really well also. I don't listen to a lot of radio, but I did a station scan and it picked up all the locals plus a few further out crystal clear. Nice extra feature. Overall, if you're looking for a quick, easy, inexpensive way to bring some non-amplified wired speakers into the digital age, you can't go wrong with this box. ... show more
Reviewed in the United States on July 26, 2026 by LK409
    • works good
works good, I read the directions hooked it up and it worked some of the other reviews did not read. it's way loud , the bluetooth hooks up seconds I havent checked the range but its good enough for my installation, radio reception seem pretty good. I'm happy
Reviewed in the United States on June 23, 2026 by Bill
    • Good for smaller speakers
Review Image by Ashanti
I want to start this off by saying I know VERY little about how this actually works lol. The sound quality of this when connected to speakers is wonderful and very clear. It is very simple and easy to connect to my smaller speakers, there aren’t a ton of features but enough to customize your sound experience. The light colors can not be changed sadly, I’d have liked to be able to do that. It provides more than enough power to my small speakers for them to be used with no issue and it is instantly responsive. The machine is very lightweight but the buttons and knobs feel sturdy. I’d recommend this as an inexpensive starter piece of sound equipment or if you’re like me and just want to have some speakers to listen to music casually/rain sounds on at night to make it realistic lol. ... show more
Reviewed in the United States on April 5, 2026 by Ashanti
    • No Brainer
Perfect for what I needed - backyard & garage music with radio and bluetooth. BT range is more than enough at 30-35 ft. Sound is outstanding for such a small unit. Only issue is radio channel surfing is annoying and appears can only be done with the remote. For the price - so far it’s a no brainer.
Reviewed in the United States on June 10, 2026 by Madal Darchuck
    • Loud, Clear Sound 🔊 Great value for the price. 🌟🌟🌟🌟🌟
Great value for the price. 🌟🌟🌟🌟🌟 This device provides loud clear sound 🔊 I purchased this to power my living room television’s tower speaker system. All that was needed was to connect the speakers to the amplifier and then connect the audio output on the television to the audio input on this amplifier. It’s definitely loud enough for watching football and movies.🔊 I haven’t even turned it up much louder than 25% and clear undistorted sound fills the room. I also tried listening to some music via USB, and again it’s loud and the music doesn’t distort, with my speakers which can handle the amplifier’s wattage. You could easily use this amplifier for an inexpensive and effective home stereo system. Just get some decent speakers, and you are good to go.🔊 *The only slight and insignificant drawback is with the USB you cannot skip from folder (album) to folder (album), you need to skip from track (song) to track (song) or enter the specific track’s (song’s) number, and even a 16GB USB holds 1000s of MP3s. The easy solution is to just get several USBs and create a playlist of 50-100 songs for each. 💡 Not a huge drawback. Additionally, the artist name, song name, etc. is not visible on the device’s display screen. Again, my opinion, that should not deter anyone from purchasing this amplifier. While listening via USB, I expect most people will recognize the artists, albums etc. that they selected for their USB playlists. I am giving this 5 stars considering it does exactly what I purchased it to do and the value for the price. Focus on the device’s sound quality and volume capability. 🌟🌟🌟🌟🌟 I haven’t tried to connect via Bluetooth or listen to the radio but I expect that works fine. Again, this amplifier is easy to use, loud and produces a clear sound 🎼🎵🎶 Great value for the price 🌟🌟🌟🌟🌟 ... show more
Reviewed in the United States on November 4, 2025 by Amazon Customer 777
    • Great Value! TURNTABLE only works when you add Preamp
I needed an amplifier for my 1990s Denon turntable with FM reception. I tried the AK-35 and the turntable didn't work at all. Then I tried this AK-45 and the turntable worked but I had to put the volume at full blast and I could barely hear it. After researching the problem, I learned that a Preamp is required to get the sound to work properly. I found Pyle Ultra Compact Phono Preamp Model PP444 https://www.amazon.com/dp/B004HJ1TTQ?ref=ppx_yo2ov_dt_b_fed_asin_title The Preamp was easy to hook up and voila! I have sound working with my turntable! Volume is perfect for my needs. I use it in my office. I only gave it a 4 star because it wasn't easy to tune into my favorite radio station 104.3. Scan would keep passing it up and I didn't know how to make it stop where I needed it. I couldn't find where you can just input the station I wanted. The directions didn't help. It took several tried and I finally got it to work but I'm not sure what I did. I like that I can turn it off with the remote and all I have to do is change to FM mode and it remembers the last station and I just leave it there. It's looks good and I appreciate the compact size. UPDATE: 5 Star - FM receiver, I can enter the station number and it goes directly to it. ... show more
Reviewed in the United States on August 27, 2025 by SewLittleTime
    • FM antenna is cheap thin wire, connection can't be modify.
The unit is ok, Bluetooth worked fine, sound was ok for the price but the FM reception is not great if you live in a rural area. The supplied antenna is a thin wire that goes into a non standard rf connection. It is designed for that specific antenna. It is not a 75 nor 300 ohm connection so you can't use a different antenna unless you change that connection. ... show more
Reviewed in the United States on June 28, 2026 by Amazon Customer
    • Exactly as advertised!
This product is exactly as described, I don’t normally do reviews, but this one I had to let people know my take. Revive your old non Bluetooth speakers, microphones, stereos and such. Good stuff. Thanks , Charlie N.
Reviewed in the United States on June 22, 2026 by Charlie Nicolas

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