high quality Video Recording Solution 500 ProX Q4 is ideal for film making, broadcast interview and business presentations. Good choice for filmmakers, journalists, vloggers, YouTube creators. Simply plug it in the mini microphone receiver, and go for iPhone facebook livetream vlog podcast video recording.6H Built-in Battery LifeEnjoy 6 hours of battery life from the transmitters, 10 hours from the receiver. Charge your transmitter and receiver via USB Type-C Charging Port ( DC 5V )2.4GHz Wireless Microphone KitThe 500 wireless lavalier microphone system operates on the interference-free 2.4GHZ spectrum and automatically hops to free channels to avoid static noise and audio dropouts3.5mm Headphones OutputConnect headphones to monitor the audio output on receiver328' Operating RangeWith a max transmission range of 100 meters (328 feet) in open, unobstructed environments, 500 ProX is ideal for scenarios like livestreaming, vlogging, and outdoor recording. Warranty24 months product warranty and post-sales service, if you have any question about our products, please feel free to contact us directly.Wireless Microphone for iPhoneThe 500 ProX Q4 wireless lavalier microphone comes with 2 transmitter, a MFi certified lightning receiver, for iPhone iPad IOS devices video recording.