Connection to mobile phone through bluetooth technology
Battery lasts up to: standby 10 days - conversation 20 hours
Sizes: universal
Colors: black, grey, red.Etc
Composition: 95% polyacrylonitrile, 3% cotton, 2% polyester
Battery:4.2v/500ma
Bluetooth version:3.0
Bqb available
Packing:gift box
100pcs/cartons
N.W/g.W:/17 /18.5 kgs
Cartons size:54*30.5*57cm