1. Applicable objects: used for band or singer concert stage performance to connect to mixer or power amplifier output, home can connect to computer, TV audio output
2. The effective distance is upgraded to 50 meters
3. There are three channels to choose from, in the same place, three sets of equipment can be used at the same time without interference
4. The external antenna of the receiver makes the signal reception more stable
5. Audio corresponding: 30Hz-16KHz
6. Receiving sensitivity: S/N12dB3uV
7. Transmitter power supply: DC 12V/300mA
8. Dimensions: transmitter 15x10x3 cm, receiver 6.5x2.5x9.5 cm
9. Weight: about 1800 grams
10. 2 AA batteries（not included）
11. Delivery list: transmitter, receiver, monitor earplugs, earmuffs x2, manual, audio link cable, 12V/300mA charger
