Specification 1. 2.4G wireless DMX512 receiver 2. 126 channels jumping frequency automaticallyhigh anti-jamming ability.to ensure works reliablity 3. Material: zinc alloy + plastic 4. Input voltage: 5VDC 500mA MIN 5. communication distance:400M (visible distance) 6. work frequency section:2.4G ISM,126 channels.frequency section 7. 7 groups ID code settableUser can use 7 groups individual wireless net without any interfere. 8. Warranty: 3years Establishing Communication: 1. Power on DMX512 wireless received board first and then following to power up the transmitted board. 2. Press Key button to set same ID value of transmitted board and received board. Please use different ID value if you need use more than 1 group wireless universals at same time in same place. 3. The red LED flashes when transmitter transmits DMX data by no interfered frequency section, then receiver changes communicated frequency section. Green LED flashes til received corrected same ID value,LED flash more fast once DMX data more fast. 4. Communication was established correctly. Precautions Please use the original chargerDC 5V 500mA min output. about 2 hours to fully charge the battery the fully charged battery can lasts about 7 hours of workand users can also use the product while charging. Before using the product, please read the manual carefullyIf you face any problems, please feel free to contact us.UK Plug 220VPackage 1 Transmitter with Adapter + 5 Receivers (Built-in Battery) + User Manule