Product Dimensions‎14x 10x 4cm; 112GramsBatteries‎1 LR44 batteries required.Item model number‎BYM1Colour‎BlackCompatible Devices‎Laptop, DSLR, Camcorder, Tablet, SmartphoneConnector‎6.35 mm Jack, 3.5 mm JackSize‎BYM1Battery Type‎Nickel-ZincHardware Platform‎PC, Audio Recorder, SmartphonePower Source‎Battery PoweredItem Weight‎112gManufacturer‎Shenzhen JiayzCountry of Origin‎ChinaImported By‎DexterBOYA BY-M1 is an omni directional microphone, perfect for videoDesigned for Smartphones, DSLR, Camcorders ,Audio recorders, PC etc.The microphone features an Omni pickup pattern, for full, 360-degreeUsing the microphone: For Smartphone Switch off the microphone Slide the ON/OFF up to OFF/Smartphone The power is shut down. For DSLR, Camcorders, Audio recorders, PC ect Switch on the microphone. Slide the ON/OFF up to ONFor use with the Lavalier Microphone on Action Cameras customers are requested to purchase "TRRS to TRS Adapter" then only it would work, One button switch between camera and smartphone mode