DescriptionPlug and Play & Auto Sync: No Driver, Bluetooth or Application needed. Just select the adapter suitable for your devices, plug the receiver into your devices, then turn on the lavalier microphone and receiver, these two parts will pair automatically.Smart Noise Reduction: This mini wirele microphone built-in smart chip, whether youre recording in a quiet indoor or a noisy outdoor, it can effectively identify the original sound and keep the sound clear. In addition, double click Mute to filter unwanted sounds at any time during recording.65FT Audio Range & 6H Working Time: A high-sensitivity microphone perfectly captures clear audio from an unobstructed effective distance of 65FT. This mini wirele lavalier microphone has a built-in high-capacity rechargeable battery that provides up to 6 hours of operating time and can be fully charged in just 1.5 hours.Dual Wirele Microphones: This wirele lavalier microphone system includes 1 receiver and 2 microphone transmitters, which makes it poible to record sound or video from both 2 parties at the same time. Of course, you can also use either microphone alone. Profeional designed for Vloggers, YouTubers, Bloggers, Interviewers and other video recording lovers.FeaturesMicrophone: digital markInput voltage: 5VBattery capacity: 60MAHReceiver battery: 90MAHContinuity: 5-6 hoursSignal to noise ratio: 64DBM Adaptive noise reductionTransmiion delay: 30MSSensitivity: -42DBFrequency response range: 20-20KHZTransmiion distance: 15m without obstaclesPacking list Package List:1 or 2 x Lapel Microphone1 x Receiver1 x Charging Cable1 x Instruction Manual