UHF Handheld Wireless Microphone Mic with Mini Receiver 50 Channels for Karaoke Business Meeting Speech Home Entertainment Features: UHF wireless handheld microphone + mini receiver kit for karaoke, party, DJ, business meetings, speech or other outdoor & indoor activities. High-quality sound transmission, clear voice and low noise, without feedback and free from distortion, suitable for live performance. 50 selected channels, supports using up to 16 sets at the same time; and the effective transmission range is about 30-50M in open area. The receiver with 6.35mm(1/4") connector, plus the included 6.35mm to 3.5mm adapter, you can connect it to your speakers or amplifiers easily. Plug and play, easy e, and the battery-powered microphone and wireless receiver allow you to move freely on stage or in the room. Specifications: Effective Range: 30-50M without obstacle Channel: 50 channel, at most can use 16 sets at the same time Frequency Stability: + 0.005% Signal to Noise Ratio: 100dB Max. Output Sound Pressure: 130dB Microphone Head: Moving-coil Microphone Power Supply: 2 * AA Batteries(not included) Receiver Power Supply: Rechargeable Lithium Battery Microphone Size: 25.5 * 4.5 * 3cm/ 10 * 1.8 * 1.2in Microphone Weight: 270g/ 9.5oz Package Size: 30 * 18 * 6cm / 11.8 * 7.1 * 2.4in Package Weight: 510g / 18oz Package List: 1 * Microphone 1 * Receiver 1 * Anti-Slip Sleeve 1 * 6.35mm to 3.5mm Adapter 1 * Receiver Charging Cable 1 * Receiver Battery