1. Unique patented appearance, ergonomic design, comfortable to wear for a long time 2. One-key noise reduction button 3. Support both Type-C digital output and 3.5mm analog output 4. The real wireless sampling rate is 48kHz/16bit, the frequency response is 20Hz-20kHz, the sound pickup is and clear without distortion 5. Barrier-free wireless connection distance up to 70 meters Automatic 2.4G frequency switching and matching after power on, no need to set, plug and play Zero delay and no loss, support 6 groups to work at the same time (no serial frequency). With fast charging battery, it can be fully in half an hour and can work for 6 hours Multiple ways of use: head-mounted, neckband, hand- Applicable to many occasions: teaching, fitness, lectures, conferences, tour guides, shopping guides, etc. Compatible equipment: cameras, smartphones, computers, game consoles, amplifiers, speakers, trolley speakers, outdoor speakers, multimedia classroom speakers, bus speakers, player equipment, etc. Directivity: Omnidirectional Frequency: 2.4G Frequency response: 20Hz-20kHz Transmission distance: 50M Signal-to-noise ratio: equal 58dB Battery: 350mAh/3.7V Charging interface: Type-C Rated input: DC5V/1000mAh Charging time: 0.5 hours Working time: 6-8 hours Product: 2.4G wireless rear-mounted neck-mounted microphone Size: 19.8x3x1.8cm Colour:black Material:ABS Package Contents: 1 x launcher 1 x receiver 1 x rear hanging hose 1 x camera card bracket 1 x 3.5mm audio cable 1 x 1 to 2 USB-A to USB-C cable (for charging/data transfer) 1 x USB-C to USB-C cable 1 x 3.5mm one-to-two audio splitter 1 x windshield sponge 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.