Features 1.HIFI SOUND: Wireless lavalier microphone is omnidirectional microphone with high pickup sensitivity and intelligent noise reduction to make the sound clearer. 2.UHF: Wireless lapel microphone system has 50 UHF selectable frequency adjustable to provide stable signal transmission and avoid signal interference. 3.RECHARGEABLE: Both the receiver and transmitter have built in 400 mAh rechargeable lithium battery, ensuring 6?7 hours of operation time. 4.LONG 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. 5.APPLICATION SCENARIOS: Wireless lavalier microphone system is widely used in live broadcast, Vlog recording, interview, show host, podcast, speech, church, wedding, etc. 6.PORTABLE: 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. specificationItem Type: Wireless Lavalier Microphone Material: ABS Transmission Mode: UHF Frequency Range: 700?800MHz Number of Channels: 50 Operating Range: 30?50m/32.8-54.7yd ( Depending On The Environment) Frequency Response: 20Hz to 18KHz Built in Battery: 2 x 400mAh Lithium Batteries Battery Life: 6?7 Hours ( Depending On Capacity) Charging Time: 120?150 Minutes Cable Length: Approx. 1m/3.3ft PackageList 1 x Receiver 1 x Transmitter 1 x 6.35Connector 1 x 3.55mmConnector 1 x InstructionManual 1 x ChargingCable 1 x StorageBag NoteAll data are measured manually, and there are certain errors in the measurement results.