T&G TG639 TWS Wiress Bluetooth Speaker Red 1. Adopt international advanced BT chip and circuit design technology to support all BT devices. 2. Built-in low-frequency heat sink, ultra-dynamic low-frequency sound pressure gain, transparent and flexible listening. 3. After pairing with BT device, it can play music, such as mobile phone/MID/TV, and the working distance is greater than 10M. 4. Support AUX IN audio input. 5. Built-in MP3 decoding, can directly play TF card, U disk 6. Built-in FM radio module to facilitate automatic scanning and saving of radio channs. 7. Equipped with hands- microphone call function 8. Support TWSProduct Specifications: 1. Bluetooth version: V5. 32. Propagation range: 10 m 3. Audio to noise ratio: 95db 4. Battery capacity: 1500mAh 5. Built-in voltage: 3.7 v 6. Game time: about 2H 7. Charging input: 5v/500maPacking List:Bluetooth Speaker X1USB cable X1User Manual X1