1.ultra-high frequency, high fidelity
2.ultra-low distortion
3.transimission through walls,floors, ceiling etc. with ease
4.strong stereo sound
5.strong anti-disrupption capability
6.high power output
7.low FCC
8.stable performance
9.designed for EU&US markets
10.simple&elegant look
11.widely applicable to PC, TV, DVD,VCD, MP3, MP4 and other major audio sources

1) PLL technology
2) multi-directional transmission
3) frequency: 863.1MHz-863.5MHz or 912.5MHz-914.5MHz or 138MHz
4) frequency range:20Hz ~ 20KHz
5) distortion: 60 dB
7) frequency range:20Hz ~ 20KHz
8) R/L channel separation: >30dB
9) transmission range: 100 meters
10) power supply (transmitter): DC12V
11) power supply (headphone):700mA/H rechargeable NI-MH battery