Features:

Adjustment of Sound Balance

One Transmitter can be Connected to Several Headphones

Selectable Adjustment of Tone Clarity

Two Rechargeable Batteries

Microphone Button for Sound Amplification

Specifications:

Operating Voltage: Transmitter 5V

Headphone 3.7V 350mAh

Carrier Frequency: 2.4GHz

Operation Distance: 30 Meters

Frequency Response: 20Hz-20KHz

Distortion: ＜0.5%

S/N ratio: >75dB

Working Time: 8 hours

Charge Time: 4 hours