1. The frequency, battery indicator, and signal strength bar are clearly and intuitively displayed on the LED screen. 2. Built-in dual antenna that resists to WiFi and electromagnetic wave, etc., features of anti-jamming and has longer transmission distance (30m). 3. 24-bit/48kpbs high resolution, with Mic/Line two modes to switch from. 4. Strong, stable and fast receiving signal. Small wireless transmitter system, lithium battery inbuilt, plug and play, easy to operate. 5. Equipped with XLR female to 6.35mm male microphone adapter, compatible with audio mixer, recorder, speaker, PA system, amplifier, etc. Provide stable and reliable wireless transmission. 6. Number of Channels: 6 7. Transmission Distance: About 30 meters 8. Duration: Stable 6 hours 9. Power Supply: Built-in USB charging 10. Delay: About 5ms 11. Sound Dynamic: 110dB 12. Sampling Rate: 24bit / 48 kpbs audio 13. Frequency Response Range: 20Hz-20kHz 14. Antenna Impedance: 50 15. SNR: 110dB 16. Battery: 3.7V 400mAh Li-ion battery 17. Support Microphone Types: Dynamic microphone and condenser microphone with built-in power supply 18. Colour: As Shown 19. Material: ABS 20. Package Contents: 2 * Microphone Transmitter 21. Only the above package content, other products are not included. 22. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.