Smart Mini Amplifier External High Quality Sound Audio Speaker Specification: Item type: Mini Amplifier External Audio Speaker Decibel : value increases by 3DB, Boosted: Value sound is doubled Speaker: 324Q2W, FO≤80Hz, 1PCS Output power: RMS 2W×1 (THD S10%, F=1KHz) Frequency response range: 80Hz-20KHz Signal-to-noise ratio: 250mAh Standby time: ≥240 hours Size: 4*4*3.5 Compatibility: Smart-phone,ipod,Laptop,Tablets, etc Features: 1. Plug and play, one-shot, plug it in and you can use it, the phone's loudspeaker is five times louder to turn the audience around. 2. Upgrade and innovation, plug and play, no need for any settings, convenient and time-saving pairing, one-second link, say goodbye to cumbersome. 3. 5 times amplification, increases the sound, enhance the audio-visual senses, let the ears be immersed in the scene, 4. Not only the volume is large, but also the sound quality is good. The powerful passive radiator not only improves the volume, but also improves the sound quality, allowing you to experience loss less sound quality. 5. Multi-scene application: listening to music, navigating loudspeaker, playing games on mobile phones, crystal clear and unstoppable, the shell is made of high-quality transparent ABS material, crystal-like translucent. 6. Long press the switch, short press mute. Self-contained power supply, fast charging, independent power supply design, micro USB charging interface, audio-visual does not consume the power of the mobile phone, one charge for 45 minutes, you can listen to it when you charge it, and listen without hindrance.