■ frequency range: 640-690mhz

■ number of adjustable channels: 100×2

■ oscillation mode: phase-locked loop frequency synthesis (PLL),

■ frequency stability: ±10ppm,

■ receiving method: superheterodyne secondary frequency conversion,

■ reception sensitivity: -95~ -67dbm,

■ frequent sound: 40-18000hz,

■ harmonic distortion: ≤0.5%,

■ SNR: ≥110dB,

■ audio output: balanced output and mixed output,

■ transmission power: 3-30mw,

■ modulation method: frequency modulation (FM)

Battery specification: 2 batteries of no. 5,

Power specification: 100-240v 50-60hz 12VDC (switching power adapter) or 220VAC/ 50-60hz 12VDC (linear power supply),

■ power consumption: ≤10W

It is the first patented automatic hand sensor technology in the industry. After the microphone leaves the hand at rest, it will be silent within 3 seconds (in any direction or at any Angle). After 5 minutes, it will automatically enter the standby mode for energy saving. After 15 minutes, it will automatically shut down and completely cut off the power supply.

◆ the new audio circuit structure, high pitched fine, low and middle frequency strong, especially in the details of the sound has a perfect performance. Super dynamic tracking ability makes it easy to pick up and play far/near.

◆ the new concept of digital pilot technology, completely solve the KTV compartmentalized mutual frequency phenomenon, never frequency!

◆ configuration with noise suppression function circuit, more simple debugging.

Automatic search without interference channel function, more convenient installation.

◆ the maximum output volume can be freely limited to a wider range.

The host machine can flexibly set the usage times.

UHF frequency band, PLL frequency synthesis.

◆ 100×2 channels, with an interval of 250KHz.

◆ superheterodyne secondary frequency conversion design, with high reception sensitivity.

The radio frequency part adopts multistage high performance medium filter, which has excellent anti-interference ability.

◆ the first intermediate frequency adopts sound meter filter, and the second intermediate frequency adopts three-level ceramic filter, which improves the anti-interference ability.

◆ the specially designed mute circuit completely eliminates the impact noise when the microphone is turned on and off.

◆ the microphone USES the no. 5 battery of tesco, and the renewal time is up to 6-10 hours.

◆ the microphone adopts a unique booster design, the decline of battery power does not affect the overall performance of the hand microphone.

Ideal operating radius of 80 meters, suitable for all kinds of requirements.

◆ the default configuration is a blue backlight with LCD screen and an aluminum mic duct.

◆ with adjustable transmission power and adjustable noise threshold, the rear panel of the receiver is equipped with an external noise control knob, which can flexibly set the effective operating radius between 10 meters and 80 meters according to the needs.

◆ with infrared automatic frequency matching function, the microphone can be quickly synchronized to the working channel of the receiver.

◆ KTV engineering model, two microphones, a host. Easily configure more than 100 KTV rooms, unique product structure design, maintenance fast and simple.