Bluetooth name; f9-10
Bluetooth version: 5.0
Headphone speaker: φ8mm
Noise reduction function: cvc8.0
Headphone battery capacity: 50MAH
Storage box battery capacity: 1200MAH
Transmission distance:> 10m
Talk time: 5 hours
Play time: 5 hours
Support system: all Bluetooth-enabled devices and mobile phones

The package includes:

2 x i7 TWS Wireless Independent Bluetooth Headset (1 Pair)
1 x Charging box
4 x Extra rubber buds (different sizes)
1 x USB charging cable
1 x User Manual