The Sennheiser HDR 120 RF wireless headphones are an inexpensive supplementary or expansion set, operating in the 863MHz or 926MHz variant frequency range, and designed for use with Sennheiser's RS 120 Hi-Fi or television wireless headphone monitoring system. These headphones feature extended low frequency reproduction, a supra-aural, open-back design, and NiMH rechargeable battery operation with a 20 - 25 hr. battery life.

Features:

·  Supra-aural stereo wireless RF headphones with extended bass reproduction for Hi-Fi or television monitoring

·  Three selectable RF channels in two separate UHF groups with receiving range of up to 300', reception through walls and ceilings

·  Very lightweight headphones with comfortable padded earcushions and headband

·  Dual NiMH "AAA" rechargeable battery operation with 20 - 25 hr. battery life

Specifications:

·  Type: Supra-Aural Open Back RF Wireless Dynamic Stereo Headphones

·  Frequency Range: 22 Hz - 19.5 kHz

·  Sensitivity: 106dB SPL

Transmitting Frequency Range

·  863 - 865 MHz

·  926 - 928 MHz(Receiving)

Package Contents:

·  HDR 120 Wireless Headphones

·  2 x NiMH Rechargeable "AAA" Batteries