Detailed Product Description

Features:
1) IR-8377 infrared wireless stereo headphone (1 CH) for cars
2) IR-8377D infrared wireless stereo headphone (2 CH) for cars
3) Light weight design for comfortable wearing
4) Auto mute and auto power off function on headphone

Specifications (IR8377):
1) Single channel
2) Carrier frequency:
a) Right channel: 2.8MHz
b) Left channel: 2.3MHz
3) Speaker: 30mm mylar
4) Cone impedance: 32Ω±15%
5) Effective range (maximum): about 10 meters
6) Audio model: stereo
7) S/N ratio: ≥60dB
8) Channel separation: ≥40dB
9) Frequency response: 30 ~ 20,000Hz
10) Power supply: 2 x AAA battery

Specifications (IR8377D)
1) Dual channel
2) Carrier frequency:
a) A channel: 2.8MHz for right channel; 2.3MHz for left channel
b) B channel: 3.8MHz for right channel; 3.2MHz for left channel
3) Speaker: 30mm mylar
4) Cone impedance: 32Ω±15%
5) Effective range (maximum): about 10 meters
6) Power source: 2 x AAA batteries
7) Battery life: about 48 hours