Description: Hi-Fi Stereo Sound : The bluetooth speaker equips with advanced digital signal processor, which pumps out crisp treble, detailed mids, and especially enhanced bass at any volume. 10-Hour Playing Time: With the top-of-the-line rechargeable li-ion battery, the bluetooth speaker boasts an unbeatable 10 hours of continuous music playtime or make calls time(built in Microphone). Upgraded Bluetooth 5.0 : wireless bluetooth speaker can normally connect the device from 66 unobstructed feets away even under difficult conditions and the signal is not disturbed. The bluetooth 5.0 chip easily reads music play list, and connect any devices such as smartphone, TV and laptop. Function:Bluetooth,Handsfree,TF card(Max 32GB),FM Specification: Material:ABS Charging:USB Micro Unit size:120x30x60mm Net weight:150.7g Bluetooth:5.0 Channel:1 Speaker:40MM, 4 3Wx1 Bass diaphragm :30x40MM Frequency:60Hz-16KHz Charge:5V / 0.3A Battery:500mAh Package Includes: 1x BT speaker 1x color box 1x USB Charging Cable 1x English manual