1. Using UHF 630-660MHz band to avert interferencing frequency.
2. Receiver is antenna circuit, guarantees no dead spot in working area.
3. Auto-scan frequency, can search for available frequencies for matching with IR.
5. Adopt digital-chip circuit solution, preset 200 frequencies for your selection.
6. Splendid LCD display, shows the RF, AF, volume, channel, frequency, battery level.
7. Preset HI/LO transmitter power
8. Auto-mute handheld
9. Ideal distance: 80 meters
10. Designed for KTV room, karaoke, meeting and so on.