Dual Channel Omnidirectional Polar Pattern Frequency Range: 50Hz - 20kHz Built-In Microphones The world's smallest and first truly wireless microphone has been reborn. The Wireless GO II is an ultra-compact and extremely versatile wireless microphone system consisting of a dual channel receiver and two transmitters. The transmitters act as a clip-on microphone, featuring a high-quality built-in microphone for completely wireless operation, or they can be used as a beltpack with an external lavalier, delivering crystal-clear audio for any content creation application. The Wireless GO II boasts a range of powerful features, including universal compatibility with cameras, mobile devices and computers, extended range (200m line of sight) and improved transmission stability, on-board recording capabilities, and much more. This is next generation wireless audio. Features: Dual channel wireless microphone system for recording two sound sources simultaneously Series IV 2.4GHz digital transmission, 128-bit encryption - crystal-clear audio at up to 200m (line of sight), optimized for extremely stable operation in dense RF environments 3.5mm TRS analog output, USB-C and iOS digital output - universal compatibility with cameras, mobile devices and computers On-board recording - over 24 hours of internal memory Mono or stereo recording modes - record each channel separately or combine them for ultimate flexibility in post-production Safety channel, flexible gain control (three-stage pad, expandable to 10-stage) In-built rechargeable lithium-ion battery - up to 7 hours battery life Designed and made in RODE's precision manufacturing facilities in Australia Unmatched Versatility: The Wireless GO II takes wireless versatility to new heights. Featuring a 3.5mm TRS analog output for plugging into cameras, plus a digital audio output via USB-C for plugging into smartphones, tablets and computers, it is perfect for content creation, filmmaking, on-camera or on-stage presentations, vlog