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8-Channel Digital UHF System with 400 Frequencies – 50 selectable channels per mic (250kHz step), 400 total, immune to interference
Ready-to-Use Headset/Lavalier Kit – Includes 8 lightweight headset microphones with bodypack transmitters, perfect for hands-free presentations, performances, and fitness instruction (customize to handheld, gooseneck, or mixed combos on request)
Professional 2U Rackmount Receiver – Black metal chassis, bright blue-white LED digital display, independent volume control and signal window for each channel; rear panel features 4 rubber antennas, 8 balanced XLR outputs, and 1 mixed unbalanced output
Advanced PLL & ID Code Technology – Smart digital PLL circuitry locks frequency precisely; unique ID per channel prevents crosstalk, supports up to 5 receivers (40 transmitters) in parallel
Long-Range & Secure Transmission – 100-300m range (open space), encrypted transmission protects content; clear vocal penetration through any venue
Flexible Power & Battery Management – Handheld transmitters offer selectable RF power (Hi/Lo) to save battery and reduce interference; headset/beltpack runs 8 hours on two 1.5V AA batteries
Robust Metal Handheld & Durable Beltpack – Metal aluminum handheld tube, rugged design; ABS plastic beltpack with volume control, lightweight and comfortable
Versatile Scenarios – Perfect for concerts, stage performance, DJ/live streaming, church worship, school auditoriums, corporate events, and home karaoke
2U Rackmount Receiver | Hands-Free Headset Mics | PLL Tech | 300m Range | Scalable up to 40 Mics
The D3900 delivers professional 8-channel wireless audio with wealth of frequency options. Each of the 8 channels provides 50 selectable frequencies (250kHz step), totaling 400 interference-free slots. The system includes 8 headset/lavalier microphones with beltpack transmitters, ideal for hands-free operation. You can also customize your set: choose 8 handheld mics, 8 conference goosenecks, or any mixed configuration – just contact us.
Receiver Display: Blue-white LED screen, individual signal windows for all 8 channels
Outputs: 8 balanced XLR + 1 mixed unbalanced 1/4" output
Antennas: 4 rubber rear-mounted antennas for enhanced reception
PLL Technology: Intelligent digital phase-locked loop for rock-solid stability
Handheld Mic: Metal aluminum tube, selectable RF power (Hi/Lo)
Beltpack: ABS plastic, lightweight, volume control knob, works with headset/lavalier
Battery: 2 × 1.5V AA, up to 8 hours continuous (80mA consumption)
Distance: 100-300m open space, 80-150m with obstacles
📦 Need a different mic combination? Contact us to build your perfect 8-channel kit – we support handheld, conference, and mixed sets!
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