1、One for two wireless microphones, support 25 channels, SLR camera mini radio lavalier interview live microphone. 2、Small and exquisite, easy to carry, maximum support 50m/164ft wireless transmission range. 3、Clear reception, HI‑FI, active noise reduction chip sound quality as clear as 4K picture quality. 4、Built‑in lithium battery lasts for a long time, adopts ∪SB charging interface design, convenient charging, don’t worry about charging problems. 5、Comes with hot shoe bracket for easy fixing of receiver. 2 x Transmitter1 x Receiver1 x Instruction1 x Charging cable1 x Hot shoe bracket (installed)1 x 3.5mm straight line1 x 3.5mm spring wire1 x Adapter2 x Clip 2 x Wind muff Condition: 100% brand newItem type: One for Two MicrophoneMaterial: plasticColor: As picture shownWeight: Approx. 383g Frequency range: UHF640‑690MHZNumber of channels: 25Signal to noise ratio: >100dBModulation method: FMFrequency response: 40HZ~20KHZEffective range: ±50 metersDistortion: ≤ 0.5%Working temperature: ‑10℃~50℃Receiving sensitivity: >‑105dBLavalier line length: Approx. 1.5m/ 4.9ftBattery: Built‑in battery, lithium battery 140mAh