1. 16 frequency points, support multiple sets to use at the same.2. Wide transmission range, stable signal,you can free to move and immerse yourselves on the stage.3. It is not only suitable for XLR microphones (built in 0V/5V/48V mode), but also perfect for guitar audio reception.4. It can support one transmitter working 6 hours which ensures great performance for every use.5. Small and portable, no need to worry about cables mess6. Frequency range: 570MHz-596MHz7. Wireless transmission range: 50-80mSpecification: Package Weight One Package Weight 0.36kgs / 0.80lb One Package Size 18cm * 18cm * 7cm / 7.09inch * 7.09inch * 2.76inch Qty per Carton 30 Carton Weight 11.20kgs / 24.69lb Carton Size 53cm * 35cm * 32cm / 20.87inch * 13.78inch * 12.6inch Loading Container 20GP: 449 cartons * 30 pcs = 13470 pcs 40HQ: 1042 cartons * 30 pcs = 31260 pcs