1.BT chip / version: V5.0+EDR
2.Wireless frequency: 2.405GHZ-2.480GHZ
3.Power: AC 110-240V DC 5V
4.Support file formats: HFP HSP A2DP AVRCP
5.Transmission power: CLASS 2
6.Wireless distance: 10m
7.battery capacity: earphone 60mAh*2 / case 700 mAh
8.Music Playback Time: 4 hours 9.Standby time:120 hours 10.The size of bare earbuds: 106*31.2mm
11.The weight of bare earbuds: 68g
12.Color:Black, sliver, grey, gold, red
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