备注： * Foldable design * Infrared wireless stereo headphone (Single Channel) * Carrier frequency: A source: 2.8MHz (right); 2.3MHz(left) B source: 3.8MHz (right); 3.2MH (left) * Compatible with all vehicle AV applications * Auto mute and auto power off function * Comfortable wearing with adjustable headband * Personal volume control * Effective range up to 8 metres * S/N ratio: ≥60dB * Speaker: 30mm mylar * Power supply: Requires 2xAAA (1.5V) batteries
