Tosunra U-688 Wireless Microphone System provides clear sound and stable performance for singing, events, and presentations. It has a wide range, strong signal,
and easy-to-use controls. With long battery life and durable design, it’s perfect for both professional and everyday use.
Features
Wide frequency range with stable signal transmission
Clear and high-quality sound output
Dual channel receiver for better connection and flexibility
Long operating range of up to 100 meters
Low distortion and high signal-to-noise ratio
Adjustable sensitivity and volume control
Durable metal microphone body
Long battery life for continuous use
Easy setup and user-friendly operation
Suitable for stage, karaoke, meetings, and events
Specification
Model : TOS-U-688
Work Frequency : 690–740 MHz, 740–790 MHz, 800–850 MHz
Modulation Mode : Broadband FM
Channels : 200
Channel Frequency : 250 KHz
Frequency Stability : ±0.005%
Dynamic Range : 100 dB
Max Excursion : ±45 KHz
Frequency Response : 60 Hz – 18 KHz (±3 dB)
Signal-to-Noise Ratio (S/N) : ≥105 dB
Total Harmonic Distortion (T.H.D) : ≤0.5%
Operation Distance : About 100 m (under no-interruption conditions)
Working Environment Temperature : -10°C to +50°C
Receive 50-60 meters
6-8 hours battery life two Wireless Microphones
Receiving Machine index
Receiving Machine Mode : Superheterodyne
IF : 110 MHz, 10.7 MHz
Antenna Receive : BNC / 50 Ω
Sensitivity : 12 dBμV (80 dB S/N)
Sensitivity Adjustable Range : 12–32 dBμV
Erratic Control (Spurious Suppression) : ≥75 dB
Max Output Frequency : +10 dBV
Transmitter index
Antenna : 1/4 wavelength flagelliform antenna
Output Frequency : Max frequency: 30 mW; Min frequency: 3 mW
Erratic Control : -60 dB
Power Supply : 2 × 1.5V alkaline batteries
Battery Vitality : About 10 hours (normal transmission); about 15 hours (low-frequency mode)
Package Includes:
1pc x Receiver Unit
1pc x DC 12V Power Cord
2pcs x Antenna
2pcs x Wireless Microphone
1pc x User Manual
4pcs x AA Battery
2pcs x Rubber Stopper
1pc x 6.5 to 6.5 Jack AUX Cable
