AudioMX HG-21B, User Manual, Page: 4 / 8

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4. Chargeable design: place the headphones on the transmitter charging stand to charge
when not in use.
5. Dual usage methods: use wirelessly with the help of the transmitter or use as regular
wired headphones by connecting them to an audio source.
6. Ergonomic headband design allows it to snugly fit various head sizes; well-padded
headphones cushions provide comfortable cover.
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Technical Specifications
Transmission Mode GFSK
Carrier Frequency 2.4 GHz
Transmitter Operating Voltage DC 5V 550 mA
Receiver Operating Voltage 2 × 1.2 V AAA
Signal-to-Noise Ration ≥ 85 dB
Frequency Response 15 Hz ~ 22 KHz
Distortion < 0.5%
Transmission Distance 30 m
THD ≤ 0.3%
Channel Separation ≥75 dB
Unit Diameter 40 mm
Unit Resistance 24 Ω
Sensitivity 105 dB
Output Power 7 mW
Gross Weight 1050 g
Package Size 12 cm × 22.5 cm × 31.5 cm
Features
1. 2.4 GHz digital wireless technology with strong anti-interference performance enables
you to enjoy crystal stereo music and TV sound anywhere inside your home.
2. 31-channel frequency hopping system automatically finds the strongest signal.
3. The transmitter has auxiliary input connections for various audio sources like DVD player,
CD player, TV set, VCR or iPod and more.