Come and see our amazing products. TECHNICAL PARAMETER Output power: 3W Charging time: the first charge at least 2 hours Standby time: 5 hours Power supply mode: DC & Battery Power Supply Packing: Machine + charging line + factory packing box The product support mobile phone, MP3, MP4, MP5,PC and other audio devices with 3.5mm socket. Reminder: Please be sure to switch on the speaker or high current may burn out the speaker. Pls confirm with us about the packing info, stock color and exact production time before placing your order