Saramonic Blink 500 B3, Wireless Microphone System, Very compact 2.4 GHz two-channel wireless microphone system with lavalier microphone, Broadcast quality for Apple iPhone and iPad, Very lightweight, battery-free MFI certified Apple Lightning 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) of built-in microphone: 120 dB, Max. SPL (sound pressure level) of lavalier microphone: 110 dB, Sensitivity of the built-in microphone: -42 dB, Sensitivity of the 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: 63 x 43 x 16.5 mm, Dimensions of the receiver: 76 x 16.5 x 11 mm, Transmitter weight: 34 g, Receiver weight: 11 g@+*Included:*@+@+, 1x RXDi, 1x TX, 1x SR-M1 lavalier microphone, 1x Lavalier microphone with alligator-style clip, 1x Foam lavalier windshield, 2x Gold-plated USB-C to USB-A charger cable, 1x Pairing pin