Boya's by-wm3t2-u2 wired 2.4 ghz microphone is an extremely compact wireless microphone set for use with usb-c devices such as smartphones, ipads and computers. The boya by-wm3t2-u2 uses the 2.4ghz band. Both the transmitter and receiver have a very compact housing, making the boya by-wm3t2-u2 suitable for such educational videos, vlogs and interviews. With the by-wm3t2-u2, you get usb-c to usb-a cable for charging the two transmitters. Two plopcaps are also included. The transmitters weigh only 8.5 grams and are made of high-quality plastic. Reliable connection the by-wm3t2-u2 can be used for both outdoor and indoor activities. Electronic devices, metals and obstacles such as walls, ceilings and windows can have a negative effect on the signal. However, with the by-wm3t2-u2 you will experience virtually no interference. What is special about the by-wm3t2-u2? The audio from both microphones is recorded on both the left and right audio channels. The by-wm3t2-u2 is primarily designed for smartphones with usb-c ports. If desired, you can also use the by-wm3t2-u2 with a modern ipad (usb-c) or a modern pc/laptop (usb-c). Both the transmitters and receiver are very compact and the transmitters have a built-in battery that can be charged with the included usb cables. You connect them to a usb charger or a computer. Application boya 2.4ghz tie pin microphone wireless by-wm3t2-u2 for usb-c the boya 2.4ghz microphone wireless by-wm3t2-u2 for usb-c is a complete reporter kit that is easy to use and almost unobtrusive due to its compactness. The transmitter has a built-in microphone and a clip that allows it to be attached to clothing in just two seconds. This ensures that the microphone does not interfere with your use and that you can move freely. Only the built-in microphone can be used, so it is not possible to connect an external microphone (cable). Warranty boya by-wm3t2-u2 the by-wm3t2-u2 is supplied with a three-year warranty only through this sales channel (after registration via the special warranty card in the packaging). Other specifications: rf modulation: gfsk (gaussian frequency shift keying) frequency: 2.4ghz (2400-2483mhz) channels: 48 frequency range: 20hz to 16khz (+/-3db) signal-to-noise ratio: 77db or more distortion: 0.1% or less rf output power: 6 dbm range: 50m (unimpeded) battery life: ± 10 hours transmitter charging: via usb-a cable one-way communication