In the transmitter, the receives digitized (USB or S/PDIF)stereo audio and analog stereo audio as input, Support uncompressed (16bit,48KHz)digital wireless transmission, DSSS digital modulation and demodulation, 2.4GHz ISM Band (Default frequency: 2412MHz, 2437 MHz, 2462MHz),Receivable distance is more than 100meter of without distortion .

In the Receiver (headphone Amp),Output stereo audio, DAC IC use WM8740,Uses a high-capacity battery (12V,2600mAh),All FET Class A amplifier,The audio power amplifier power supply design including a high-output current and low noise ± 12V conversion of proprietary technology.
Specification:
1.RF
2.4GHz ISM Band ,Channels at 2412MHz, 2437 MHz, 2462MHz,
Output power: 15dBm(Typ),
Long distance: >100m.
2.Audio
Input Signal: S/PDIF (Optical and Coaxial,up to 96-kHz Rate);USB; Analog stereo,
Max output voltage: 10 Vpeak,
Frequency Response: 20Hz-20kHz,
THD at 5 V peak: 0.005%(300ohm load 1kHz)
S/N : >86dB
3.Battery
Max working time: 3.5hours
The number of battery charge: >500 times
4.Body dimension:
TX: 128(L) 92(W) 35(H) unit:mm
RX: 128(L) 92(W) 35(H) unit:mm
5.Body weight: 250g(Transmitter),650g(Receiver).
6. Package includes:
a. Transmitter,
b. Receiver (headphone Amp),
c. Power adapter (Input:AC100-240V;Output:DC9V/1A),
d. Power adapter & Chargers (Input:AC100-240V;Output:DC12.6V/1A),
e. Optical cable (Length 1.5m),
f. USB cable (Length 1m),
g. User’s Manual.
7. Package dimension: 300mm(L) 290mm(W) 100mm(H).