Feature: 1. One receiver, two microphones, suitable remote pickup of mobile phone video recording. Cardioid Directivity. 2. UHF wireless microphone is compact, portable, convenient and beautiful to wear. It adopts professional noise reduction technology, noise suppression, and clear sound quality. 3. The microphone frequency is U‑band frequency conversion, there are multiple groups of frequency points adjustable, multiple groups can be used at the same time without serial frequency, and can support 40 groups at the same time. 4. UHF frequency band, stable signal, open and barrier‑free 50m/164ft transmission and recording, no matter the distance of the mobile phone, the recording sound is equally clear and stable. 5. It's easy to wear, small body clip design on the back, which can be clipped on clothes arbitrarily, such as neckline and T‑shirt cuffs. Convenient and easy to operate with one hand. 6. UHF wireless microphone most smart phones and tablet computers such IOS//Samsung. Specification: Condition: 100% Brand New Item Type: Wireless Microphone Material: ABS Color: As Pictures Shown Weight: Approx. 175g/6.2oz Audio Signal: Digital Sampling Frequency Range: 550.5MHZ-589.5MHZ Pairing Mode: Automatic Pairing Frequency Response: 50Hz-8KHz Transmission Mode: UHF Power Consumption: 0db Current <75mA Power Supply: 400mAh Built-in Polymer Lithium Battery Audio Output: Mixed Output Microphone Core: Condenser Charging Port: DC 5V Frequency Matching Mode: Automatic Pairing by Default Wireless Distance: 50m/164ft in the Classroom Environment Package List: 2 x Transmitter 1 x Receiver 1 x Charging Cable 2 x Windproof Cotton 1 x Adapter 1 x Manual 1 x Type-C Adapter Cable Note: During use, when the blue light flashes quickly, it means low voltage. Please charge it as soon as possible. If the light completely off, it will no longer work. Shut down to charge red light is always on, and the red light is off when it is full.