Features [Omnidirectional Condenser Microphone] Includes 2 transmitters and 1 receiver, omnidirectional pick up pattern, can pick up sound from all directions and reproduce it clearly; adopt smart ENC noise reduction technology, can effectively reduce plosive, background noise, and wind sound. [Large Wireless Transmission Range] Advanced 2.4G wireless transmission technology, easy to pair, has strong and stable signal, large transmission distance up to 30-60 meters, giving you more movement freedom; with multiple indicator lights, convenient for adjustment. [Broad Compatibility] Equipped with 3.5mm TRRS to TRRS and TRRS to TRS audio cable, widely compatible with smartphone, camera, and camcorder, great for Vlog video recording, live stream, interview, online teaching, business meeting, etc. [Built-in Battery & Real-Time Monitoring] 300mAh large capacity battery, has long working time after fully charged; comes with an earphone, supports earphone connection for real-time monitoring, so that you can change volume and tones in time. [Mini Clip-on Microphone] Compact size and light weight, can be easily clipped on your collar, no need to hold it by hand, you can hardly feel it while speaking; also convenient for neat storage and portable application. Specifications: Type: one-trigger-one/ one-trigger-two(optional) Color: Black Working Voltage: 3.0V-4.4V Working Frequency: 2.3G-2.48G Transmission Power:+4dBm Sample Rate: 48K/16bit Delay: 26mS S/N Ratio: 62dB Distortion Rate: 0.17 Microphone Type: Omnidirectional condenser microphone Sensitivity: -38dB2dB(1dB=1V/Pa@1KHz Frequency: 100Hz-18KHz Battery Capacity: 300mAh Charging Current: 150mA Working Current: 28mA(Single Chip Standby Current: 22uA Operating Temperature: -2580 Transmitter Size: 4.8 * 4.3 * 1.2cm/ 1.8 * 1.6 * 0.47inch Transmitter Weight: 24g/ 0.84oz Receiver Size: 4.8 * 4.3 * 1.2cm/ 1.8 * 1.6 * 0.47inch Receiver Weight: 24g/ 0.84oz Note The camera showed in the pictures is not included. Package List 2 * TX Transmitters 1 * RX Receiver 1 * Earphone 2 * Mic Windshields 1 * Charging Cable 1 * 3. 5mm TRRS-TRRS Camera Cable 1 * 3.5mm TRRS-TRS Phone Cable 1 * Type-C to Type-C Cable 1 * User Manual (Chinese and English)