Searching for a stable, long-distance UHF wireless audio transmitter receiver to eliminate messy audio cables for live performance, studio recording or conference audio setup? Meet the AU680A 5-in-1 wireless audio transmitter & receiver Kit, a professional-grade wireless audio transmission kit built for audio engineers, live musicians, event planners and studio producers.

This all-in-one wireless audio transmitter & receiver Kit integrates XLR, RCA, 6.35mm and 3.5mm multi ports, delivering lossless CD-quality wireless audio signal up to 800 meters in open space. Different from ordinary Bluetooth audio adapters with short range and high latency, our UHF wireless audio transmitter receiver adopts GFSK modulation, ultra-low <0.5ms latency and strong anti-interference performance, perfectly solving audio sync lag issues for stage shows, electronic instruments, mixer-to-active speaker connections and computer audio output systems.

Supporting 1 transmitter paired with up to 200 receivers simultaneously, this multi-receiver wireless audio system enables large-scale audio distribution for multi-speaker venues, stage monitoring and tour guide audio transmission. Flexible signal mode switching further upgrades its compatibility: the transmitter toggles between balanced & unbalanced XLR signals, while the receiver features a lift/earth ground switch to eliminate hum noise from ground loops.

5-in-1 Multi-Interface Universal Compatibility
The AU680A wireless audio transmitter receiver is equipped with full-range audio jacks: dual XLR ports, RCA, 6.35mm 1/4” and 3.5mm AUX interfaces, which works as a universal wireless audio adapter for almost all audio devices.

800m Long-Range UHF Stable Transmission
Operating on clean 590–619MHz UHF frequency band, this wireless audio transmitter & receiver Kit avoids Wi-Fi, Bluetooth and 2.4G signal interference. 20 adjustable working channels with 4MHz channel spacing support multiple wireless audio systems running side by side without signal conflict. Open-space transmission distance reaches 800 meters, fully covering large stages, outdoor events and conference halls.

Ultra-Low Latency Lossless Hi-Fi Sound
Built with 48KHz 24bit high sampling rate, 95dB high SNR and only 0.3% THD@1KHz, the wireless audio transmitter delivers transparent, full-frequency sound (20Hz–20kHz) without compression loss. Less than 0.5ms ultra-low latency ensures perfect audio-video sync for live performance, streaming and recording, far better than cheap Bluetooth wireless audio adapters. (virtually lossless, CD‑grade audio quality)

A standout feature of the AU680A wireless audio transceiver: single transmitter supports pairing with maximum 200 receivers at the same time. Perfect for multi-zone audio distribution, multi-speaker stage setups, group monitoring and large conference broadcast, greatly cutting equipment costs for professional audio projects.

Anti-Hum Ground Loop Elimination Design
Transmitter: Balanced / Unbalanced XLR signal switch to match professional line-level & mic-level signals
Receiver: Lift / Earth ground switch to cut ground loop buzz, solving common noise troubles in long-distance wired audio setups

Wide Working Environment & Stable Power Supply
Both transmitter and receiver run on 5V DC voltage, with low power consumption (max 120mA for transmitter, only 40mA for receiver). Operating temperature range from -16°C to 65°C, suitable for indoor studios, outdoor live gigs, cold winter venues and hot summer event sites.

This professional UHF wireless audio transmitter receiver fits all professional & consumer audio scenarios, widely searched by global audio buyers:

Parameter	Wireless Audio Transmitter	Wireless Audio Receiver
Operating Voltage	DC 5V	DC 5V
Max Working Current	120mA	40mA
Operating Temperature	-16°C ~ 65°C	-16°C ~ 65°C
Working Frequency Band	590–619MHz UHF	590–619MHz UHF
Modulation Mode	GFSK	GFSK
Available Channels	20 CH (4MHz spacing)	20 CH (4MHz spacing)
Transmission Range	800m (open area)	—
Power Consumption	0.6W	0.2W
Receiving Sensitivity	17dBm	-90dBm
Typical Input/Output Level	-5db--+2.5dBu	-5db--+2.5dBu
Input Impedance	10K Ohm	—
Audio Interfaces	Dual XLR, RCA, 6.35mm, 3.5mm AUX	Dual XLR, RCA, 6.35mm, 3.5mm AUX
Signal Switch Mode	Balanced / Unbalanced XLR	Lift / Earth Ground
Stereo Output Power	—	30mW / 50mW (RL=32Ω)
Output Impedance	—	1K Ohm
Frequency Response	20Hz–20000Hz	20Hz–20000Hz
Audio Latency	<0.5ms	<0.5ms
Sampling Rate	48KHz, 24bit	48KHz, 24bit
SNR	95dB	95dB
Total Harmonic Distortion	0.3% @1KHz	0.3% @1KHz
Dynamic Range	90dB	90dB
L/R Channel Isolation	85dB	85dB

Q1: Is this the only available UHF frequency band? Can other frequency bands be provided?
A: We support custom UHF frequency bands based on client project requirements.

Q2: What is the maximum transmission distance of this UHF wireless audio transmitter receiver?
A: Up to 100 meters (330 feet) in open space without obstacles. Walls or metal barriers will slightly shorten the effective range.

Q3: What number of device sets can run simultaneously within the same area?
A: The system supports up to 10 sets of devices within the same area by default, and the maximum capacity can be customized according to customer requirements.

Q4: Can one transmitter connect to multiple receivers?
A: Yes, the AU680A wireless audio transmitter & receiver Kit supports 1 transmitter paired with up to 200 receivers simultaneously, ideal for multi-zone audio broadcast.

Q5: Does this wireless audio transmitter & receiver Kit work for electric guitars and keyboards?
A: Absolutely. Equipped with 6.35mm instrument jack, it perfectly acts as a wireless instrument transmitter for guitar, keyboard, bass and other electronic musical instruments.

Q6: How to eliminate ground loop hum noise?
A: The receiver has a Lift/Earth ground switch. Switch to Lift mode to cut ground loop interference and remove buzzing noise. The transmitter also supports balanced XLR signal mode for cleaner professional audio signals.

Q7: Is the latency low enough for live performance?
A: The audio latency is less than 0.5ms, nearly unnoticeable to human ears, totally suitable for live stage performance, real-time monitoring and live streaming.