Saramonic Blink 500 B6, Wireless 2-Channel Microphone System with 2 Channels and 2 Lavalier Microphone, Very compact 2.4 GHz microphone system, Broadcast quality for mobile devices that have USB-C ports, Very lightweight, battery-free USB-C receiver, The plug-in receiver features a built-in microphone or can be used with the included SR-M1 lavalier microphone, For mobile video production, vlogging, journalism and more, Range: 50 m, Frequency response: 50 - 18,000 Hz, Max. SPL (sound pressure level) (built-in microphone): 120 dB, Max. SPL (sound pressure level) (lavalier microphone): 110 dB, Sensitivity (built-in microphone): -42 dB, Sensitivity (lavalier microphone): -30 dB, Power supply: Li-Ion battery or USB-C DC 5V, Up to 6 hours of battery operation, Audio input: 3.5 mm mini jack for the lavalier microphone, Dimensions of the transmitter (W x H x D): 63 x 43 x 16.5 mm, Dimensions of the receiver (W x H x D): 76 x 16.5 x 11 mm, Weight of the transmitter: 34 g, Weight of the receiver: 10 g, Included: 1x RXUC, 2x TX, 2x SR-M1 lavalier microphones, 2x clip-on lavalier microphones with alligator-style clip, 2x foam lavalier windscreens, 2x charger cables with gold-plated USB-C to USB-A connectors, and 1x pairing pin