Sony MDRRF995RK Wireless RF (Radio Frequency) Headphone with Transmitter Base Station + Stereo Connecting Cable + AC Adaptor + HeroFiber Ultra Gentle Cleaning This Kit Includes 7 Items; Sony MDR-RF995R Wireless RF (Radio Frequency) Headphone, Sony TMR-RF995R Transmitter Base Station, Stereo Connector Cable, Sony Rechargeable Battery, AC Adaptor Power Supply, Operating Instructions & HeroFiber Ultra Gentle Cleaning Cloth Wireless closed type headphones, with a range of up to 150 ft away. Noise-reducing technology keeps the wireless signal free of interference 1.57" driver unit delivers a wide frequency range, Simple to connect the transmitter dock to your TV Closed cap design, dynamic drivers, and Voice Mode button, Soft ear pads, Secure fitting Built-in automatic tuning for high quality transmission, Listen for longer with up to 20 hours of battery life