⏸ Upgrade Version AK-45 Digital Audio Amplifier▶ Fully updated design, 40W+40W rated power, perfect match for 4-8 inch passive speakers. Function upgrade, adding Mic Jack. Besides, as a digital amplifier receiver, the sound quality is more perfect than ordinary analog amplifiers, With built-in power transfer board which support AC 110-240V power input and DC 12V/5A power input, ready to use.⏸ HiFi Stereo Effect Amplifier Receiver▶ 2.0 channel bluetooth 5.0 stereo digital amplifier receiver can provides 400Wx2 P.M.P.O(Peak Music Power Output), with powerful audio processing chip, distortion Rate: ≤0.5%, signal-to-noise ratio: 85db, strong anti-interference ability, shielding power inductance, low noise amplifier,HiFi sound effects, you can experience the effect of immersive.⏸Multiple Input & Multipurpose▶ This home audio power amplifier, with Bluetooth, AUX, MIC, SD,USB input, audio from external devices, such as CD, DVD, TV, PC, computers, tablets, notebooks, phones, MP3, and projectors with AV audio etc., mini size with FM faction, great for indoor/outdoor,party, car,teaching use.⏸With Mic Function▶ The home audio amplifier receiver with Microphone input jack, you can sing karaoke with families or friends at home, amplifier with Echo and Reverb Delay function, you will get more perfect HiFi sound quality output. Besides,The audio amp with FM Function, FM mode can set up more than 20 stations.⏸Easy to Use▶ Bluetooth audio amplifier compatible with two 4-16Ω passive speakers. Power amplifier plifier with remote control for distant audio adjustments, can read SD card and USB MP3 player, support BT wireless connection, with US plug for easy to use,great for home theater system use. AK45 Bluetooth 5.0 Power Amplifier 2.0CH 40W x 2 Output Max 400W Subwoofer Hi-Fi Audio Amplifier Receiver with Remote Control,FM Antenna for Car Home Bar Party Features: 1. Bluetooth5.0 RCA SD USB input, 2.0 channel stereo output, just little sound distortion. 2. Hifi sound quality, you will enjoy a more perfect sound quality experience. 3. Mic volume and volume,treble and bass control knobs. 4. With 2 Mic jacks, you can sing karaoka at home. 5. With remote control and US Plug for easy to use. 6. U-disk and memory card reading, plug and play. 7. With FM Faction AK-45 Audio amplifier wide compatible with mobile phones, computers, tablets, notebooks, MP3, MP4,TVs and projectors with AV audio etc . Use occasion: AK45 audio amplifier is widely use indoor and outdoor, such as family, party, bar, concert,Carnival etc. Specifications: Product name: 2.0 Channel Bluetooth Audio Power Amplifier Product model：AK45 Version: Bluetooth 5.0 (5 meters if unobstructed) Input Sensitivity: 500mV Signal to noise ratio:>85dB Frequency: 20-20KHZ Distortion Rate: ≤0.5% Audio Input: BT RCA SD USB Channel: 2.0CH FM Faction: Support Adapted speaker: 30W and above, 4-16Ω Power Range: DC12V/5A, AC 90V-240V,50-60Hz Output Power: Rated power: 40W-40W, peak power: 300W+300W Product size: 7.1in*5.4in*2.7in Package Weight: 1.76lb Package Including: 1 x AK45 Audio Power Amplifier 1 x Remote Control 1 x US Plug 1 x FM antenna