1Mii Mini Bluetooth 5.4 Stereo Amplifier, 2 Channel 50W×2 Hi-Fi Digital Amp for Home Audio, USB/AUX/Optical Input, Wireless Audio Receiver for Bookshelf/Desktop/TV/PC Speakers, 24V Power Supply

Price: $34.99
(as of Jul 11, 2025 12:56:36 UTC – Details)

Product Description

Supports SBC AAC decoding

The Latest Upgraded Bluetooth 5.4 Technology

Provides more stable and faster transmission and wider wireless distance (15m without obstacles).

2.0 Channel Home Audio Amplifier

50 watt per channel power output can drive most home passive speakers.

USB AUX Optical Bluetooth Inputs

Widely compatible with your existing audio source devices (phone, tablet, TV, PC, MP3/MP4 and more).

Crystal-Clear Hi-Fi Sound

B75 delivers clear and natural high fidelity sound, taking your listening experience to new heights.

Small But Powerful

The compact design features a sleek and modern aesthetic that complements any home audio setup.

1 The Latest Bluetooth 5.4

2 2.0 Channel Amp

3 Multiple Audio Inputs

4 Crystal-Clear Hi-Fi Sound

5 Small But Powerful

1 Bookshelf Speakers

2 Computer Desktop Speakers

3 TV Speakers

4 Outdoor Speakers

Wide Compatibility

1 Audio Output 2 Audio Input

Suitable for Home and Other Small Venues

Product Parameters

Max Output Power 2*50W Channel 2.0 Impedance 4~16 ohms Audio Input Bluetooth, USB, AUX, Optical Audio Output Banana Speaker Jacks Power Supply 9V-24V (24V-3.0A Power Adapter Included) Dimensions 75*66*39mm (2.95*2.6*1.54in) Net Weight 126g/0.28lb

Does the B75 support working with a subwoofer?

B75 is a 2.0 channel amplifier, not a 2.1 channel amplifier. It does not support subwoofer, but supports use with traditional stereo speakers, such as bookshelf speakers, computer speakers, wall speakers, etc.

What is the impedance of the speaker that the B75 amplifier is suitable for?

The B75 amplifier is suitable for speakers with impedance ranging from 4 to 16 ohms.

Do NOT connect speakers with an impedance of 1-2 ohms, as it may damage the amplifier.

Does it support Bluetooth and wired input at the same time?

Bluetooth and wired cannot work at the same time. When the B75 input is connected to the audio cable, Bluetooth will not work. And the audio cable that is last connected to the B75 input port will be given priority.

What should I do if there is no sound output after the B75 is connected?

1.B75 prioritizes the last connected audio cable as input, pls unplug other irrelevant cable.

2.For TV Optical, pls set the SOUND OUTPUT of TV SOUOND SETTINGS to “External Speaker” or “Optical Out”, set the DIGITAL AUDIO FORMAT to PMC (or Stereo).

What should I do when the output volume is low?

1. Check if the audio input and output are fully plugged in;

2. Turn up the volume of the B75 amplifier;

3. Turn up the volume of the audio source device (mobile phone/computer/TV).

Product Dimensions ‏ : ‎ 2.99 x 2.81 x 1.56 inches; 3.53 ounces
Item model number ‏ : ‎ B75
Date First Available ‏ : ‎ April 26, 2025
Manufacturer ‏ : ‎ 1Mii
ASIN ‏ : ‎ B0F18TCNN2
Country of Origin ‏ : ‎ China

【Small But Powerful】1Mii B75 Mini Bluetooth amplifier delivers up to 100W (50W x 2) of output power, effortlessly driving most household passive speakers, perfect for compact spaces like living rooms, garages, backyards or small offices. Easily upgrade your home audio system to provide richer stereo sound for movie nights, video games and parties.
【Amazingly Pure Hi-Fi Sound】Connect your home speakers (bookshelf speakers, PC speakers, TV speakers, etc.) to create a dedicated high-quality audio system that provides clear and high-fidelity sound quality for music streaming and TV, elevating your listening experience to new heights.
【User-friendly Multiple Input Options】Seamlessly connect your existing audio devices (such as mobile phones, tablets, TVs, PC, CD players, etc.) via Bluetooth/USB/AUX/Optical input. Especially the USB input, you can enjoy lossless sound quality without installing drivers. Plug and play. Ordinary players can also easily and quickly build their own dedicated sound system.
【The Latest Upgraded Bluetooth 5.4】With Bluetooth 5.4 technology, B75 mini stereo amplifier enables faster pairing, extended range and more stable transmission for premium wireless listening experiences. Ideal for wireless streaming from Spotify, Apple Music, Amazon Music or or your own library.
【Stylish and Compact Design】Crafted with high-grade aluminum alloy, this Bluetooth amplifier for speakers features a compact yet durable design that can be easily placed on your bookshelf, desktop or AV cabinet without taking up space. It has a sleek, modern aesthetic that complements any home audio setup.
【Please NOTE】1. Not suitable for subwoofer. 2. Not suitable for speakers with 1~2 ohm impedance, recommended for 4~8 ohm speakers. 3. For TV Optical, pls set the SOUND OUTOUT of TV SOUOND SETTINGS to “External Speaker” or “Optical Out”, set the DIGITAL AUDIO FORMAT to PMC (or Stereo).