Product features 1. Adopt advanced Bluetooth audio decoder chip to support all Bluetooth devices connection. 2. Supporting FM radio, it can search radio stations in the listening area directly. 3. The tone is soft, clear and dynamic, with distinct levs. 4. Direct reading TF card and U disk; 5. Bluetooth receives a distance of up to 10 meters 6. Bluetooth mode connectionless, shut down for half an hour 7. A variety of flashing mode of slide-color LED lights, lights can flicker with the music mody a key conversion, music mody can not only listen to but also see.SpecificationsBluetooth Specification: V5.0Wiress transmission range: 10MAudio Performance Noise Ratio: > 90dBBattery capacity: 1200 mAhBuilt-in voltage: 3.7VNormal volume playback: 3HHorn Specification: 52MM * 1Power: 5W*1Frequency response: 120HZ-20KHZProduct size: 108x84.1x83.6mmSingle machine weight: about 310GCharging Voltage: 5V/500MAPackage list:1* Bluetooth Speaker1* Charge cable1* Manual