Feature: 1. Universal Compatibility: Compatible with both dynamic and condenser microphones, allowing for wireless singing. Supports dynamic microphones at 0V and condenser/recording microphones at 5V or phantom-powered condenser microphones at 48V. 2. UHF Auto Frequency Pairing with 16 Frequency Groups: Supports multiple groups simultaneously without interference. In case of frequency interruption, the microphone transmitter and receiver can be easily reconnected using ID codes. 3. Adjustable Gain Control for Stable Audio: 4. Extended Wireless Range and Clear Sound Quality: 5. Long-lasting Battery Life with Real-time Monitoring: Built-in 3.7V 1000mAh rechargeable battery offers extended usage time of 6-8 hours. Real-time display of frequency band and battery level allows for timely monitoring, while prominently indicating the power on/off status to prevent accidental power drain. Specification: Origin: Mainland China Product color: Black Frequency range: 500-980MHz Adjustable channel: 16 adjustable frequency points. Channel spacing: 0.5-2.5MHz Modulation method: DQPSK Frequency stability: ± 3PPM Frequency response: 40Hz-20KHz Working range: 50-80M Working voltage: 3.7V Battery capacity: built-in 1000mAh lithium battery, with a usage time of 6-8 hours Chip: This product adopts a highly integrated chip design and ID code pairing authentication. Product size: 110.00x35.00x28.00mm/4.33x1.38x1.1inch