Philips Flite Hyprlite Series Bluetooth headset is a lightweight and beautiful 12.2mm driver that delivers clear, bass-free sound to the listener. Packed with acoustics, up to 10 meters of Bluetooth range that you can easily use while exercising, no worries, with microphone for answering, music and volume adjustment Don't worry about losing your calls because ringing your phone, The headphone's vibrant performance will keep you informed. The specially designed and metallic color headphones will double the charm, charging the device for 7 hours in standby mode and 120 hours in standby mode when finished charging inside the cable box. There is USB, 32 ohm impedance and 105 dB sound sensitivity.,fa