High capacity rechargeable lithium battery, Support various audio input : Memory card , BT , FM , AUX, 4. Microphone , ... Brand: LP-V9 Speaker Product:GOOD BASS Power output : 8W x 2 Power Input : 3.7V Speaker Size : 18.8 x 9.3 x 13cm Play time : up to 4 hour Power output : 8W x 2 Power Input : 3.7V Speaker Size : 18.8 x 9.3 x 13cm Play time : up to 4 hour Battery : 1800 Super Bass High capacity rechargeable lithium battery Support various audio input : Memory card , BT , FM , AUX Microphone , voice prompts High quality, unique design.elegant style Stereo effect, microphone super clear call Mobile phone holder speaker.