EWD201-470A20(AUX) Voice Wireless Transmitter Broadcast-grade quality Max 2 km Long-distance audio signal transmission
[Fréquence]：470 MHz
[Puissance d’émission]： 20 dBm
[Portée]：2 km
[Dimensions]：68 * 63 *18 mm
[Introduction]：The EWD201-470A20(AUX) long-range wireless voice transceiver is a radio device that integrates voice transmission and reception. Utilizing long-range wireless transmission technology, it allows for voice input/output via a 3.5mm AUX interface. The transceiver employs a 16-bit/8kHz audio sampling rate, enabling voice-quality transmission. It supports one-to-many voice broadcasting, operates in the UHF band, and boasts a communication range of up to 2km in open environments, with strong anti-interference capabilities.
Official Store
| Serial Number | label | name | illustrate |
| 1 | VOL+/- | Volume knob | The volume control knob: turn counterclockwise to decrease the volume, and clockwise to increase the volume. |
| 2 | USB 5V | Power input | USB Type-C interface, 5V/1A input |
| 3 | IN | Voice input | 3.5mm AUX input, compatible with microphones, computers, and other devices. |
| 4 | OUT | Voice output | 3.5mm AUX output, can be used to connect headphones or output to loudspeakers and other speaker devices driven by an amplifier. |
| 5 | RX/TX | DIP switch | Dial up for receive mode, dial down for transmit mode. Only one device is allowed to transmit broadcast voice at any given time on the same channel. |
| D1~D7 | Dial up for 1, dial down for 0, resulting in 128 possible combinations. Communication is only possible when the settings on both the transmitting and receiving sides are consistent. | ||
| 6 | POWER | Power indicator light | Red, always on when powered. |
| 7 | STATE | Status indicator lights | Green light indicates it's on during communication and off at other times. |
| 8 | ON | Antenna Interface | Connect the matching antenna |