Item Type: Wireless Lavalier Microphone Material: Plastic, Electronics Microphone: Digital Silicon Microphone Input Voltage: 5V Endurance Time: 5-6 Hours SNR: 64DBM 3 Step Noise Reduction Transmission Delay: 30MS Sensitivity: -42DB Frequency Response Range: 20-20KHZ Transmission Distance: 20m/65.6ft Without Obstacles Battery Type: Built in 2 x 100mAh (Microphone) with Built in 300mAh (Rechargeable Bin) Lithium Ion Battery Package List 1 x Charging Case 2 x Wireless Lavalier Microphone 1 x Receiver 1 x Charging Cable 1 x Manual 1[Plug And Play] Clip the wireless microphone to your collar, then plug the receiver port into your device and they will connect automatically. Plug and play, no app or BT required. 2[Noise Reduction] The wireless lapel microphone has built in professional grade intelligent active noise reduction chip with digital processing technology restoration to provide HiFi sound quality. 3[360 Degree Pickup] Mini lavalier mic uses dual diaphragms for 360 degree surround sound pickup and more accurate catch of demanding sound details. The sound is delicate and reduces interference. 4[Long Range] Wireless clip on microphone is easy to connect and covers 666ft of signal with a 0.009 second transmission delay, helping you reduce power failures and record or shoot video clearly over greater distances. 5[Wide Compatibility] The lavalier microphone is compatible with most devices, supporting 99 percent of phones, computers, sound cards, cameras, camcorders, and perfectly compatible with for Android and for iOS systems. 6[Multi Application] This lapel microphone is designed for YouTube and for Facebook live streaming, for TikTok creators, Vloggers, Bloggers, for YouTubers, podcasters, interviewers, and other video recording enthusiasts.