Comica BoomX-D MI1 Wireless Microphone None Designed for journalists, videographers and vloggers, the Comica BoomX-D MI1 is an ultra-compact, true wireless digital microphone system with one microphone and two-channel receiver that can also be used to receive a second microphone (available separately). It offers a complete solution to record one person's dialogue, interviews and speeches - directly to an iOS smartphone or tablet. The ultra-light BoomX-D MI1 consists of an ultra-compact clip-on transmitter with its own built-in omni-directional microphone and separate lavalier microphone. It also comes with a tiny receiver that mounts and plugs directly into the Lightning port on your phone. To make sure you are picking up a clean signal, you can monitor your microphone through the receiver's 3.5mm headphone output while recording. The system ensures reliable transmission with clear sound up to 164 'distances. The built-in transmitter battery provides up to 5 hours of operation. Versatile and extremely easy to use with simple controls, the BoomX-D MI1 is great for content creators of all skill levels. Built-in microphone for true wireless connectivity Transmitter comes with a built-in microphone and a 3.5mm mic input that accepts the included lavalier microphone. For a truly wireless experience, the transmitter can be clipped to your clothes without hooking up yourself or your talent. You can also hold the transmitter in your hand and use it as a handheld microphone. The on / off switch also functions as the mute button. Lavalier microphone included For a more discreet setup, use a small lavalier microphone that is easily hidden away from the camera's eye. Plug-and-Play and easy-to-use wireless This plug-and-play system is easy to use. Comes pre-paired; connect it to the phone, turn it on and you can start recording. Dedicated gain buttons on the receiver allow you to quickly and easily adjust the signal level for each microphone independently. The transmitter has a display that shows signal strength, level sound and battery life. The transmitter is powered by a built-in rechargeable lithium-ion battery. It can also be powered by an external charger during use, which ensures an almost unlimited working time. The receiver is powered by the phone. Two microphones in one receiver If you need to add a second microphone to your system, the dual-channel receiver saves space on your shooting rig by using one receiver to receive signals from two microphones / transmitters simultaneously. 2.4GHz wireless < / h2> While typical analog wireless systems are susceptible to interference from television and radio waves, the BoomX-D digital system avoids this by operating in the 2.4 GHz frequency band which occupies frequencies other than television, radio and wireless UHF microphone systems. The system automatically changes the transmission frequency to mitigate noise and dropouts up to 164 feet in sight. For optimal performance, environments with limited Wi-Fi / 2.4GHz traffic and minimal physical obstacles are recommended.