Product Name: Bluetooth HeadsetModel Number: JK203Place of Origin: ChinaSpecifications: 1) Standard: Bluetooth V1.2 2) Frequency band: 2.4 - 2.4835GHz unlicensed ISM band 3) Modulation method: GFSK, 1Mbps, 0.5BT Gaussian 4) Spread spectrum: FHSS (frequency hopping spread spectrum) 5) RF output power: class 2 6) Working distance: greater than 10m in free space 7) Sensitivity: 8) Antenna: chip antenna 9) Stand-by period: up to 120 hours 10) Talking time: average 6 hrs, up to 8 hours 11) Battery: Li-ion polymer 120mAh 12) Power consumption: 20mAh (operating) 1mAh (stand-by) 13) Output power: 0dBm (Class 2) 14) LED indicator: link 15) Services supported: headset, hands free 16) Charge time: 2 hours 17) Volume adjustment: up / down 18) Size: 65 (L) x 23(W) x 30(H) mm 19) Weight: 12g Inner packing: Gift box