Description: This is an innovative, breakthrough TWS BT radio microphone with real-time transmission and full-band stereo synchronization functions. With smart phone, SLR camera video/short video shooting scene, it provides high quality sound wireless acquisition, two-way transmission and mixing.   Features: Wireless Radio: transmit BT wireless multi-channel audio with ultra-low delay within 15m, synchronizing audio and video in real time.  Full Frequency Stereo: record full band audio at 44.1-48KHz, which is more than six times the frequency of conventional mono microphones (e.g. Apple AirPods).  Multiple Noise Reduction: With an embedded intelligent algorithm, it is always prepared to record optimum acoustics by reducing sounds like wind or background noise such as people chatting.  TWS Microphone: It can record the audio of two simultaneously, suitable for group interview, concert, wedding reception or other events.  Master-slave Radio: It can be used wirelessly with digital camera and 3.5mm interface devices. You can set one as receiver and the other as microphone to realize master-slave mode radio.  Real-time Mixing: Record the background music and your voice in real time. It can be used with 3.5mm earphone.  Free APP:  comes with free iPhone and Android App that gives you complete control over audio and video creation.  Small and Portable: Small and lightweight, easy to carry, built-in lithium battery provides long service life.  Wide Application: Compatible with SLR camera, video camera, mobile phone, tablet, speaker, laptop, desktop computer, recording pen, sound card, etc. Suitable for short video shooting, video teaching recording, street interview, music recording, noisy environment shooting.   Specification: Color: Black/White(optional);  Chipset: QUALCOMM CSR8670;  BT version: 5.0;  BT protocol: A2DP, HFP, SWISS;  Sampling frequency: 48KHz;  Recording bandwidth: Full band(22.05KHz);  Wireless channel: 2;  Recording time: 5 hours;  Charging interface: Micro USB;  Battery: 110mAh;  External interface: 3.5mm 4Pin;  Item size: 5.9 * 1.5 * 1.1cm /2.32 * 0.59 * 0.43in(L * W * H);  Item weight: Approx.15g /0.53oz;  Package size: 12.3 * 9.6 * 2.7cm /4.84 * 3.78 * 1.06in(L * W * H);  Package weight: 114g /4.02oz;   Package list: 1 * microphone;  1 * Charging cable;  1 * 3.5mm earphone;  1 * Wind-proof Cap;  1 * Microphone sponge;  1 * Storage bag;  1 * User manual