The Comica BoomX-D RX is a super compact, dual-channel digital wireless receiver. It easily plugs into the 3.5mm audio input of your mirrorless or DSLR camera. With the included TRRS output cable, you can also connect it to any smartphone. This receiver lets you record up to two BoomX-D wireless mics into your camera using just one device. It saves space on your shooting setup and is perfect for recording dialogues, interviews, and speeches when two people are talking at the same time. It's a plug-and-play device that's incredibly easy to operate. The two-channel design allows you to use a single receiver to receive signals from two mic/transmitters simultaneously, saving space on your rig. It has a belt clip that also works as a shoe-mount adapter for your camera. You can even clamp it to your smartphone without a holder. There are dedicated gain buttons for quick and easy adjustment of each microphone's signal level. The display shows signal strength, audio level, mono/stereo configuration, and battery life. You can choose between mono or stereo recording. Mono combines both microphones on the left and right sides of your audio track, while stereo separates the voices of two people for easy post - production adjustment. You can monitor your mic via the 3.5mm headphone output to ensure a clean signal while recording. It's powered by a built - in lithium - ion rechargeable battery and can also be powered via USB during use, giving you almost unlimited operating time. It comes with a reset pin for easy pairing with up to two BoomX - D transmitters. Unlike typical analog wireless systems that are prone to interference from TV and radio waves, the BoomX - D digital system operates in the 2.4 GHz frequency band, avoiding such issues. It automatically changes transmission frequency to reduce noise and dropouts at a line - of - sight distance of up to 164 feet. For the best performance, use it in environments with limited Wi - Fi/2.4 GHz traffic and few physical obstructions.

Using the Comica BoomX - D RX is a breeze. First, plug it into the 3.5mm audio input of your mirrorless or DSLR camera. If you're using a smartphone, use the included TRRS output cable. To pair it with up to two BoomX - D transmitters, use the reset pin. You can easily adjust the signal level of each microphone using the dedicated gain buttons. When it comes to recording, you can choose between mono and stereo. Mono is great for combining both microphones' audio, while stereo is perfect for separating voices for later adjustment. You can monitor the audio via the 3.5mm headphone output to make sure you're getting a clean signal. The receiver is powered by a built - in lithium - ion rechargeable battery, but you can also use USB power while it's in use. This gives you long - lasting operation. As for maintenance, keep it clean and dry. Avoid using it in extremely hot or cold temperatures. It operates best between 32°F and 122°F (0°C to 50°C). Also, try to use it in areas with limited Wi - Fi/2.4 GHz traffic to reduce interference.