The audio cable is 60cm long and can be connected to the device more convenientlyThe outside is covered with a windscreen, which can prevent wind and remove noiseEquipped with damping structure, can withstand strong shakingWith the function of gain and noise reduction on the recorded sound, it can be applied to more scenesBuilt-in battery, can be recharged by USBWith audio output interface, you can monitor the sound recording effect in real time Specifications: Sensitivity: -36±2dB RL=0.68KQ Vs=1.5V( 1KHz 0dB=1V/Pa)Output impedance: Max.0.68KQ1KHz (RL=0.68KQ)Frequency response: 20-16000 HzStandard working voltage: 3.7VSignal to noise ratio: More than 75dBProduct net weight: 0.135kgWorking current: Max. 30mAMaximum sound pressure input: 115dB S.P.LCharging time: about 3 hoursWorking hours: about 5 hoursSensitivity Variation: 1.5V-1.0V Sensitivity Variation less than 3dBProduct size: 146mm*51mm Package included: 1 x Microphone 1 x Windscreen 1 x USB Cable 1 x English and Chinese User Manual Other items not include