USB Wireless bluetooth Stereo Music Audio Mp3 Travel Gym bluetooth Speaker

Feature:Best Usage: Phone, Computer,USB, AUXStereoBuilt in Li-ion battery, charged by USB interface.It is portable that you can easily use it in your car at home, office, outdoor places etc.Supports most devices with wireless bluetooth function such as smartphones, tablets, MP3 MP4 playersSuper sound quality, enjoy the High Definition music while partying, walking and etc.High capacity rechargeable 4000mAh battery for up to 8 hours of playtime based on music volume.Specifications:Battery: 2 X 3.7V 2000mAh lithium batteryInterface Type: USBAudio port: USB/AUXFrequency Response: 100Hz-18KHzMax output:2x9WEffective computer connection distance:5mEffective bluetooth connection distance:10mPackage included:1x Wireless speaker2x 2000mAh battery1x Emission USB adapter1x 1.5m USB charging cable1x Audio cable1x User manual