(2) Rockville RFH3 Wireless Infrared IR Car Headphones for Any Car Monitor

Features: Rockville RFH-3 Dual Channel IR Headphones, Foldable design for Travel convenience and easy storage, Comfort control leatherette ear surround, Dual channel function capable (A/B), Improved acoustic performance, 40mm Mylar dome speaker built in, Extended bass response, Impedance: 32 Ohms ±10%, Effective distance: 10 meters (max.), Light weight design for wearing comfort, Auto muting on headphone, Auto power off when no signal.

Specifications: A Frequency range 17-23,000 Hz, A Channel, IR_OUT_L:2.8 MHz, A Channel, IR_OUT_R:2.3MHz, B Channel, IR_OUT_L:3.8 MHz, B Channel, IR_OUT_R:3.8 MHz, B Channel, IR_OUT_R:3.2MHz, Sensitivity 96 dB, Modulation high frequency, Power supply 2X1.5V, Battery R03 (AAA) 48h (Batteries not included), Weight 160 gr. (excl. batteries).