high quality The transmitters each can be powered via Internal lithium-ion polymer batteries offer up to six hours of battery life to handle long shoots. Micro USB ports for battery recharging, powering via external USB battery packs(available separately) can avoid the trouble of battery power shortage when shooting outside. The receiver is directly powered by the recording device (Android phone/PC/laptop) and consumes very little power.Omnidirectional Microphone with Noise Reduction: : This mic has this latest noise reduction technology, you can turn on the noise reduction in a noisy environment to capture crisp-sounding speech or dialog. The internal capsule's omnidirectional polar pattern ensures reliable audio pickup even if mic placement is less than ideal.16 Selectable UHF Channels: : Optional 4 groups, 4 channels per group, flexible channel matching. when other channels are disturbed in the same space or near distance, you can quickly switch the channel to prevent interference. the 1 empowers you with a range of up to 30m, and bolsters signal dependability to mitigate drop-outs in crowded environments.Thanks to the receiver's minute form factor, which can connect directly to Type-C Android Phone such as Samsung / Huawei / LG / OPPO / VIVO / Google / Pixel / OnePlus / Xiaomi. The package includes a USB C Female to USB Male Adapter, so you can use the adapter to conect the receiver to the PC, Laptop. Daylight-readable displays on the transmitter show reception quality, battery status, and channels.Designed with stunning simplicity and efficiency in mind, the brings vloggers, DIY videographers, and content creators a cost-effective UHF wireless microphone system with simple, plug-and-record operation, clean and reliable sound.