1、The appearance is exquisite, and the size is small and easy to carry, making wireless amplification easier. 2、Built‑in high‑definition noise reduction chip, strong anti‑interference ability, effectively identify the original sound, and meet the recording needs of noisy environments. 3、With windproof sponge, indoor recording, outdoor recording is more pure, the output is not stuck, and the frequency is constant. 4、This wireless microphone uses 2.4G high‑end wireless technology, wireless amplification can reach 40m, and there is no direction limit. (no interference from dead ends) 5、Clear sound quality, one‑to‑one automatic connection to prevent interference, widely used in square dance speakers, amplifiers, audio‑visual amplifiers, computers, cameras, etc. Item Type: Wireless 1 for 1 2.4G Lavalier Microphone Color: Black Material: ABS Frequency Range: 2.4-2.483GHz Transmission Range: >30m Transmission Power: -10~18db Receiving Sensitivity: -80dB Audio Interface: 3.5mm Interface Frequency Response Range: 20Hz-20KHz Delay Time: 12.5ms Sampling Frequency: 48KHz x 16bit SNR: 90dB Distortion Factor: 0.5%@1KHz Dynamic Range: 90dB Transmitter Battery: 400mAh (Included) Receiver Battery: 400mAh (Included) Remote Controller Battery: 1 x CR2032 220mAh Button Battery(Included and with extra one) Weight: Approx. 451g/15.9oz 1 x Receiver 1 x Transmitter 1 x Conversion Plug 1 x Charging Cable 1 x Bluetooth Remote Controller 1 x Button Battery 1 x Desktop Tripod 1 x Smartphone Clamp 1 x Storage Box 1 x Instruction