Please note, this item ships from an international seller. Expected delivery is 10-15 days. Features: UHF latest wireless technology, signal stability, no delay, home WIFI signal no interference. Omni-directional microphone, high pick-up sensitivity, intelligent noise reduction, make the sound more clear and lifelike. Equipped with a professional head-mounted microphone, easy to wear, no sense of weight, very light. Ultra-long transmission distance, up to 50 meters in the open area, compatible with camcorder smartphone laptop PC. Built-in 450mAh rechargeable lithium battery, rechargeable for 2 hours and available for 6-7 hours. Specifications: Item: UHF Wireless Microphone Material: ABS Frequency response: 20-18Khz Method: UHF Frequency: - 800MHZ Number of bands: built-in 50 bands Battery Capacity: 3 * 450mAh lithium battery Battery Life: 6-7 hours (depends on ) Charging Time: 120-150 minutes Color: Black Package Size: 17*15.5*4cm/6.7*6.1*1.6in Package Weight: 146g/5.15oz Package List: 1 * UHF Wireless Microphone 1 * Receiver 1 * USB Cable 1 * 3.5mm Audio & Mic Adapter 1 * 3.5mm to 6.5mm Adapter 1 * Charging Cable