Bluetooth Speaker ABS Battery: 3.7V 1200mAh built-in battery Power: 5W*2 SNR: above 75db Voltage: DC5V Speaker: ?40mm outside magnetic trumpet / 4? Features: Supports TF card, can play Mp3 format files. Talk hands-free with mobile phone, answer call easily. 3.5 audio output / input, it can also connect with computer, MP3/MP4 / mobile. Package included: 1 x S207 Bluetooth Speaker 1 x Audio cable Design, easy to carry along anywhere you travel. Supports speakerphone, Built in Microphone, to bring clear call for you, it is perfect either with single or multiplayer for phone call or video chat. Simple and easy to operate key design through 10000 to touch test, wear non-slip, temperature, long service life. Standard:3.0+ EDR, transmission Distance:10m. Rated power 5w+5w Play Time: 5-8 hrs, S/N: 80 db, Distortion: 1%w1KHz, Charging time:3-4 hrs Pure music, perfect to enjoy, high fidelity sound, stereo speakers, built-in resonance radiator device, equipped with high efficiency power amplifier, super low frequency dynamic bass-rich, flexible, achieve a more shocking extremely super bass effect. lasting power long battery life two power modes, built-in lithium secondary medium volume with 8 hours of playback capability, suitable for any occasion.