DWS-821M is a UHF 100-channel Relay Transmitter Module designed to interlink wireless audio transmission, suitable for various applications. Operating in the UHF 500 - 960 MHz range, it offers exceptional compatibility and stable performance, making it an ideal choice for wireless systems.

DWS-821M module features configurable high-power output and 35mW low-power output with a built-in switch function to meet different usage needs. Its 25 MHz bandwidth and 100 adjustable channels ensure stable signal transmission in various environments, ideal for large conferences, outdoor events, and music performances, significantly enhancing equipment performance

DWS-821M module is equipped with user-friendly channel selection buttons and a seven-segment channel indicator for intuitive frequency adjustment. The module includes a TNC antenna interface, 6.3mm external audio input, gain adjustment, and volume control, allowing easy connection to various audio devices like phones, MP3 players, and microphones. This makes DWS-820M widely applicable in educational training, corporate meetings, religious activities, and community events, making your equipment more complete and powerful.
| Model | DWS-821M |
| Frequency range | UHF 500 - 960 MHz |
| Bandwidth | 25 MHz |
| Preset frequencies | 100 |
| Max power output | High: 100mW, Low: 35mW. Switchable on PCB. |
| Peak deviation | ± 40 KHz |
| Spurious emission | 60 dB below carrier |
| Dynamic range | 110 dB(A) |
| Receiving antenna | TNC female |
| Modulation | FM |
| Power supply | 12V DC |
| Dimensions (mm) | 74 x 145 x 36 |
| Weight (g) | 76 |