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:
Only the microphone is included.