Feature: 1. Built in dual antenna that resist to WiFi and electromagnetic wave, etc., features of anti-jamming and has longer transmission distance(30m). 2. The frequency, battery indicator, and signal strength bar are clearly and intuitively displayed on the LED screen. 3. 24-bit/48kpbs high resolution, with Mic/Line two modes to switch from. Strong, stable and fast receiving signal 4. Small wireless transmitter system, lithium battery inbuilt, plug and play, easy to operate. 5. Support with dynamic microphone and condenser microphone with built-in power supply. 6. Equipped with XLR female to 6.35mm male microphone adapter, compatible with audio mixer, recorder, speaker, PA system, amplifier, etc. Provide stable and reliable wireless transmission. Specification: Features: The frequency, battery indicator, and strength bar are clearly and intuitively displayed on the LED screen. Built in dual antenna that resist to WiFi and electromagnetic , etc., features of anti-jamming and has longer transmission distance(30m). 24-bit/48kpbs high resolution, with Mic/Line two modes to switch from. Strong, stable and fast receiving . Small wireless transmitter system, lithium battery inbuilt, plug and play, easy to operate. Support with dynamic microphone and condenser microphone with built-in power supply. Equipped with XLR female to 6.35mm male microphone adapter, compatible with audio mixer, recorder, speaker, PA system, amplifier, etc. Provide stable and reliable wireless transmission. Specifications: Material: ABS Number of Channels: 6 Transmission Distance: About 30 meters Duration: Stable 6 hours Power Supply: Built in USB charging Delay: About 5ms Sound Dynamic: 110dB Sampling Rate: No 24bit / 48 kpbs audio Frequency Response Range: 20Hz-20kHz Antenna Impedance: 50Ω SNR: 110dB Battery: 3.7V 400mAh Li-ion battery Support Microphone Types: Dynamic microphone and condenser microphone with built-in power supply Item Size: 70 * 30 * 30mm / 2.76 * 1.18 * 1.18in Item Weight: 200g / 7.05oz Package Weight: 300g / 10.58oz Package Size: 16.5 * 13.5 * 5.5cm / 6.50 * 5.31 * 2.17in Packing List: 1 * Transmitter 1 * Receiver 2 * Transfer Plug 2 * Cable 1 * Manual (English) Package List: 1 * Transmitter 1 * Receiver 2 * Transfer Plug 2 * Cable 1 * Manual (English)