1. Adopt advanced Bluetooth audio decoding chip, support all Bluetooth device connection 2. Support FM radio, can directly search for radio stations in the listening area 3. The tone is soft, clear and dynamic, with distinct levs 4. Direct reading of TF card and U disk, Bluetooth receiving distance can be as long as 10 meters 5. Support LINE IN audio input, provide you with computer speaker function 6. Can be directly connected to mobile phone/tablet/ and TV Bluetooth pairing to play music 7. When there is no Bluetooth connection, it will automatically shut down in half an hour 8. Support TWS functionSpecifications: 1. Bluetooth specification: V5. 02. Transmission range: 10M 3. Battery capacity: 1200mAh 4. Charging time: about 3-4H 5. Built-in voltage: 3.7V 6. Play time: about 4H 7. Speaker specification: 52mm x1, 8. Speaker power: 4 ohms/5W x 19. Frequency range: 120HZ-20KHZ 10. Impedance range: 90db 11. Single machine size: 147.3x45.1x81.3mm 12. Single machine weight: 285g 13. Packing list:Bluetooth speaker x1Audio cable x1Charging cable x1Manual x1