Maono AU-100R Clip-on Rechargeable Lavalier Microphone is a Hands free clip-on microphone with omnidirectional condenser for podcast and recording. This microphone is powered by an integrated 20maH Li-ion Battery. This mic has a Flat frequency and high sensitivity reading. The frequency range is -32db+/-3db and the sensitivity range is 15hz~18khz. The flatter frequency ensures better recording of vocals and instruments in any device. The mic has a  3.5mm TRRS jack and a  6.5mm adapter included. It is compatible with PC, laptop, smartphones, DSLR camera, headset and other audio devices. The mic is adjustable through Velcro with a 236 inches long cord to record loud and crisp sound when interviewing, live broadcasting, voice calling, teaching, audio/video recording. This mic is extremely lightweight and the Mini metal clip allows to easily clip it to collar,tie or pocket. State of the art lightweight materials to ensure the barely visibility of the microphone. This microphone  battery can be recharged with the Micro USB port. Although noise may happen when plugging mic into a camera in auto volume mode. Maono AU-100R Clip-on Rechargeable Lavalier Microphone offers No Warranty.