Features: Portable with its own handle, The appearance of the mini retro radio makes this Bluetooth-compatible speaker look interesting and cute. The shells adopt a matte sprayings process, which has a delicate-touch. This Bluetooth-compatible speaker uses a USB data cable to charge. Fully charged state can be used continuously for 3-6 hours.But you can also use it while charging. Stable wireless transmission through high frequency to ensure stable and pure sound quality. No matter in any playback mode, the Bluetooth-compatible speaker can answer calls with one-key hands-free. Can be intelligently connected with most mobile phones, tablet computers, desktop computers and laptop computers on the market. Specifications: Material:ABS Color:White,Pink,Green,Blue,Dark Blue Battery capacity: 3.7V 400mAh Speaker: 4 3-W Effective distance: 10M Input/Output: DC5V 1A / DC3.7V 3-W Function: Bluetooth-compatible connection playback, hands-free calling, TF card playback Size:Approx.125x75x59mm/4.92''x2.95''x2.32'' Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Bluetooth-compatible Speaker