Perfect gift for newborn parents, newborn mother, newborn father, baby shower, birthday, Christmas, festival and so on. Frequency, battery indicator and signal strength bar are clearly and intuitively displayed on the LED screen. Built-in dual antenna resistant to WiFi and electromagnetic wave, etc., has anti-interference properties and has a greater transmission distance (30m). High resolution 24-bit/48 kbps, with two Mic/Line modes for switching. Strong, stable and fast signal reception. Small wireless transmitter system, built-in lithium battery, plug and play, easy to operate. Support dynamic microphone and condenser microphone with built-in power supply. Equipped with XLR to male 6,35mm female microphone adapter, compatible with audio mixer, recorder, speaker, PA system, amplifier, etc. Provides stable and reliable wireless transmission. Technical data: Material: ABS Number of Channels: 6 Transmission distance: about 30 meters Duration: Stable 6 hours Power Supply: Built-in USB charging Delay: about 5 ms Dynamic Sound: 110dB Sampling rate: no sound 24bit / 48 kbps Frequency Response: 20Hz-20kHz Antenna Impedance: 50Ω SNR: 110dB Battery: 3,7V 400mAh lithium-ion battery; Microphone Type Support: Dynamic Microphone and Condenser Microphone with Built-in Power Supply Item Size: 70*30*30mm/2,76*1,18*1,18inch Product Weight: 200g/7,05 oz Package Weight: 300g/10.58oz Package Size: 16,5 * 13,5 * 5,5 cm / 6,50 * 5,31 * 2,17 inch List of things to pack: 1 * Transmitter 1 * Receiver 2 * transfer plug 2 * cable 1 * Instruction (English)