... technology for noise and echo cancellation .Features:.Steering Wheel Bluetooth car kit with DSP(Digital Sound Process ... rechargeable Li-ion.Car power voltage range:12-24VAccessories:Spanner,manual,car adapter,USB cable-------------------------------------------------------------------------------------Warranty : one ... sim dual standby, C5, C3, N900, N97 mini,E100TV phone: C5 with TV, N97 TV, N8Smart ...