Item Type: Wireless Lavalier MicrophoneMaterial: ABSTransmission Mode: UHFFrequency Range: 700800MHzNumber of Channels: 50Operating Range: 3050m/32.8-54.7yd ( Depending On The Environment)Frequency Response: 20Hz to 18KHzBuilt in Battery: 2 x 400mAh Lithium BatteriesBattery Life: 67 Hours ( Depending On Capacity)Charging Time: 120150 MinutesCable Length: Approx. 1m/3.3ftPackage List1 x Receiver1 x Transmitter1 x 6.35 Connector1 x 3.55mm Connector1 x Instruction Manual1 x Charging Cable1 x Storage BagAll data are measured manually, and there are certain errors in the measurement results.1HIFI SOUND: Wireless lavalier microphone is omnidirectional microphone with high pickup sensitivity and intelligent noise reduction to make the sound clearer. 2UHF: Wireless lapel microphone system has 50 UHF selectable frequency adjustable to provide stable signal transmission and avoid signal interference. 3RECHARGEABLE: Both the receiver and transmitter have built in 400 mAh rechargeable lithium battery, ensuring 67 hours of operation time. 4LONG RANGE: Wireless lavalier lapel microphone works up to 50m/164ft (in open areas), perfect for capturing sound in large scenes. 1m/3.3ft cable, flexible in use. 5APPLICATION SCENARIOS: Wireless lavalier microphone system is widely used in live broadcast, Vlog recording, interview, show host, podcast, speech, church, wedding, etc. 6PORTABLE: The transmitter has a mini metal clip that allows you to easily clip it to your collar, tie, or pocket, making it very portable. The receiver with sound adapter can be mounted on cameras, smartphones, laptops, speakers, etc.