R22-BLUTOOTH

Model: K55

Transmission distance: 10m

Charging voltage: DC5V

Talk time: about 20 hours

Standby time: about 180 days

Version: V5.2

Transmission frequency: 2.4GHz

Charging time: less than 20 minutes

Music time: about 20 hours

Battery capacity: 140MAH

Body size: 56 (length) * 25 (width) * 13 (height) mm (including back buckle height 20)

Support protocol: Headset \ Handfree \ A2 DP \ AVRCP

Headphone*1 Charging cable*1 Spare headphone*2pcs Instruction manual*1