Sennheiser RR 5200 In-Ear wirelesss headphone - attention! no transmitter included! just for extension of RS5000/RS5200! Rechargeable wireless headphone, particularly light earphone with optimized ear bow pressure ensures improved wearing comfort, three different hearing profiles, balance control for independent volume control of the left and right canal, up to 70 m range, up to 12 hours of operating time, including silicone ear pads (2 sizes S / L) and memory foam ear pads (2 sizes S / L), power supply and cable