Mini Wireless Headphone

TRANSMITTER:
1. Transmission frequency: 86MHz
2. Modulation mode: FM
3. Range available: About 35m(with no interference)
4. Power supply: 2*AAA batteries or 4.5V adaptor

RECEIVER(headphone)
1. Frequency range: 84-108MHz
2. Reception mode: FM
3. Distortion: Less than 2%THD
4. Power supply: 3V 2* AAA batteries
(Products color in sliver, purpule, red, black, green etc. )