Product Name: Bluetooth HeadsetsModel Number: XB-BH001Place of Origin: ChinaFeatures: 1) Bluetooth version: 1.1 2) Operating distance: 10m 3) Frequency: 2.4GHz 4) Talking time: up to 5 hours 5) Standby time: up to 100 hours (5 days) 6) Normal charging time: within 3 hours 7) Ear compatibility: adjustable for both left and right ears 8) Rechargeable Li-polymer battery 9) Dimensions (L x W x H): 67 x 26 x 11mm 10) Weight: 11g