Bluetooth wireless charger

Connection mode: Bluetooth connection
Interface type: USB
Battery capacity: 1200mAh
Frequency response range: 100Hz-20KHz
Output power: 5W * 2
Signal to noise ratio: ≥ 75db
Power supply mode: built in lithium battery
Vocal tract: 2.1
Playing time: more than 4 hours
Extended storage: 32GB
Bluetooth protocol: 4.1
Number of horns: 2
Effective distance: 10M
Functions: voice prompt, card insertion, radio, call function, wireless charging
Operation mode: key