One-to-Four Lavalier Wireless Microphone System, USB Plug-and-Play

1. Product Features

2. Driver-free, plug-and-play.

3. Condenser microphone pickup with wireless audio dynamic range greater than 98dB.

4. Microphone requires only 2 AA batteries; the receiver plugs directly into a PC USB port (5V 500mA).

5. Strong compatibility: supports standard USB connection to PC, compatible with Android, WINDOWS-ALL, LINUX, and Apple systems.

6. Multi-channel output: supports driver-free USB output and 3.5mm analog signal output at the same time. Can connect to mixing consoles, power amplifiers, and more.

7. LCD display showing signal strength, battery level, connected frequency points, and more.

8. Supports up to 100 test microphones working simultaneously without interference.

9. Supports manual frequency adjustment, with frequency points between 640MHz and 690MHz.

10. Supports polling switch across 10 frequency groups, 10 per group, for a total of 100 frequency points.

11. Supports simultaneous wireless connection of handheld microphones, gooseneck microphones, and lavalier microphones.

12. Compact design that stands out.

13. Simple yet sophisticated: stylish, elegant appearance; refinement in every detail.

14. Product Specifications

15. Receiver: (connects to mobile editing host)

16. Frequency range: 640MHz ~ 690MHz

17. Bandwidth: 50MHz

18. Maximum number of channels: 200

19. Receiving sensitivity: <= -105dBm

20. Signal-to-noise ratio:  >= 80dB

21. Frequency response: 30Hz ~ 15KHz

22. Audio output level: 350 mV

23. Distortion THD+N: <0.5%

24. Latency: <3ms

25. Power: USB 5V/150mA

26. Operating temperature: -25C to 60C

27. Transmitter: (portable mobile)

28. Frequency range: 640MHz ~ 690MHz

29. Sensitivity:  microphone -30dB ±3dB (0dB=1V/Pa 1KHz)

30. Capsule type: condenser capsule pickup

31. Signal-to-noise ratio:  >= 74dB

32. Frequency response: 65Hz ~ 18kHz

33. Transmitting power: 16~25dBm

34. Distortion THD+N: <0.5%

35. Effective range:  > 40m

36. Latency: <5ms

37. Operating temperature: -25C to 60C

38. Power:  2 AA batteries

39. Operating current: 200mA@3V

40. Operating time: 12 hours

41. Packing dimensions:  23*17*4.5

Instructions for Use:

1. Connecting to a PC:

42. Insert the USB end of the USB receiver into the PC's USB port; the receiver's LED flashes for 1 second, then turns off.

43. Turn on the main unit power switch; the main unit and USB receiver connect automatically, and the adapter's LED stays on.

2. Connecting to a mixing console / analog input:

44. Insert the USB receiver into a USB power supply port; the receiver's LED flashes for 1 second, then turns off.

45. Plug one end of a 3.5mm audio cable into the 3.5mm port at the rear of the USB receiver, and the other end into the 3.5mm analog signal input of the mixing console.

46. (If the target device uses XLR, Phoenix terminal, RCA, or other connectors, use the corresponding adapter cable.)

47. Turn on the main unit power switch; the main unit and USB receiver connect automatically, and the adapter's LED stays on.