01. Standard Complies with Bluetooth spec. V 1.1 Class 2(max 4dBm) 02. Profile supported Bluetooth hansfree/handset profiles 03. Radio Frequency Frequency 2.4GHz ISM Band 04. Transmission Range Up to 10 meters indoor and 15 meters outdoor 05. A Lithiumion Polymer battery charging Time 100 minutes 06. Talk Time Up to 4 Hrs and Standby Time 100 Hrs Dimension 71(L)*25(W)*23(H) mm 07. Weight Light weight 12g(not including desktop charger) 1pcs Charger of your deposit 08. Sutable for Nokia, Motorola, Sony Errission, Samsung O2 Seriers Mobile Price 23USD