| Detailed Product DescriptionLightweight Design Hands-Free Long Lasting Battery Detachable and Versatile Design Bluetooth specification: Bluetooth 1.1 compliant Support profile: Hands-free, headset Power class: Class 2 Frequency range:2402-2480MHz Spread spectrum: FHSS (79 channels) USA/EU Modulation: GFSK (gaussian frequency shift keying) Interoperability: Bluetooth headset profile or audio gateway role Security: Pairing, encryption, and authentication RF output power: -6dBM ~ +4 dBm Sensitivity: >0.1% BER at -80dBm Operation range: Up to 10 meters Battery:120mA 3.7V Input power: AC 100~240V, DC 5.10V/200mA Standby time:200 hrs Talk time:4~6hrs Charging time:1.5~2hrs Dimension:58.70mm x 21.55mm x15.18mm" Weight:13.0g with clipper 16.0 with ear hook Dimension:58.70mm x 21.55mm x15.18mm" (L x W x H) Weight:13.0g with clipper/16.0 with ear hook | 
