The BOYA BY-MM1 is a cardioid microphone specially designed to improve the sound quality of videos on the basis of build-in microphones. It can be used on smartphones cameras camcorders audio recorders PCs and other recording devices with 3.5mm connector. Features: Professional cardioid microphone with high quality electret condenser highly sensitive to sound from the front. Wide frequency response: 35-18KHz +/-3dB; sensitivity: -42dB +/-1dB / 0dB = 1V/Pa 1KHz high SNR: 76dB SPL make sure the sound is crystal clear. Comes with TRRS & TRS cable for smartphone camera camcorders & audio recorders with 3.5mm connector. The professional furry windshield can effectively minimize the wind and environmental noise for outdoor recording. Comes with a shockproof mount for you to mount the mic on phone holders/camera hot shoe mount. (phone holder is not included.) Plug and start no battery is required. Rugged metal construction. Compact and lightweight with a portable carrying bag. Specifications: Brand: BOYA Model: BY-MM1 Material: Ruged Metal Construction Transducer: Electret Condenser Polar Pattern: Cardioid Frequency Response: 35-18KHz +/-3dB Sensitivity: -42dB +/-1dB / 0dB = 1V/Pa 1KHz Signal to Noise Ratio: 76dB SPL Plug: 3.5mm TRS & TRRS Connector Item Size: 8.1 * 2.2cm / 3.2 * 0.9 (L * D) Item Weight: 50g / 1.8oz Package Size: 15 * 13 * 6.5cm / 5.9 * 5.1 * 2.6 Package Weight: 178.5g / 6.3oz Package List: 1 * Microphone 1 * Windshield 2 * Audio Cable 1 * Shock Mount 1 * Carrying Bag 1 * User Manual(English) Note: Camera phone and phone holder are not included.