無線藍牙宣傳耳機

Material : ABS+Foam
Earphone Size : 2.5*1.9mm
Package Size : 13*8*4cm
Color: Black,White
Battery cabin: 300mAh
Wireless Version : V5.0
Music time : Up to 4 hours
Talking time : Up to 8 hours
Use distance : ≤8-10 m
Battery type : Lithium battery