T&G TG441 TWS Mini Plug-in Card Portable Wireless Bluetooth Speaker(Grey)

1. Bluetooth specification: V5.3
2. Wireless transmission range: 10m
3. Audio signal-to-noise ratio: about 80db
4. Battery capacity: 1200mAh
5. Built-in voltage: 3.7V
6. Playing time: about 3h
7. Speaker power: 5Wx1
8. Bluetooth connection, automatic shutdown when no connection
9. Incoming calls can be answered with one button, support FM radio/TF card and U disk direct reading/audio input
10. Type-C charging, support TWS couplets