Features:
1) Working Voltage: 12V+-0.5V
2) Working Current: 40mA+-10mA
3) Operating Distance: up to 30 meters
4) Input Frequency: 20Hz ~ 20KHz
5) Output Frequency: please refer to "Output Frequency List"
6) Net weight: 44.5g

This incredible new product is adopted with 3D sound coding technology,
which maintains the Hi-Fi effects of MP3, MD, CD and TV. It has been
developed from frequency phaselock loop technology, which ensures stable
frequency radiation while functioning at a distance of up to 30 meters with
no dead areas. It operates through your automobile audio sounding equipment
so that you can still enjoy Hi-Fi music.