Tendystar G2 Bluetooth headset is a high-tech wireless headset, which is based on Bluetooth technology and designed to be used when driving cars. As a world famous brand, it is elegant and fashionable, enjoyable with clear sound flows, so tiny around your ear that it can free your hand for safe driving. With power is as little as 0.001 watt, which keeps your brain from harming by mobile phone current radiation. Features: 1) Operation range: up to 10m 2) Talk time: up to 9 hours 3) Standby time: 300 hours 4) Weight: about 12g 5) Switch on/off, LED indicating light, rechargeable, low capability indication Specifications: 1) Bluetooth protocol V1.2 2) Range: 10m 3) Dimensions: L67.5mm x W19.5mm 4) Point-to-point connection 5) Weight: 12g (including battery) 6) Talk time: 9 hours 7) Standby time: 300 hours 8) Charging time: 1.5 - 2 hours 9) Headset default PIN: 0000 10) Battery: rechargeable, lithium 150mAh 11) Charger: 5V DC 100-240V AC with adaptor 12) Operation temperature: -10 - 55°C 13) Storage temperature: -20 - 60°C