1. Speaker size: 50mm
2. Impedance: 32 ohm +/-15%
3. Sensitivity: 105+/-3db
4. Frequency range: 20HZ-20KHZ
5. Microphone size: 6.0x2.7mm
6. Microphone sensitivity: -42+/-3db
7. Microphone impedance: less than or equal to 2.2K ohm
8. Directionality: omnidirectional
9. Cable length: 2.1M+/-0.15
10. LED working voltage: DC5V+/-5%
11. Working current: less than or equal to 200mA (Light color: white light)
12. Headphone jack: USB+3.5MM
13. Size: 16.5x10x21.5cm
14. Weight: 410g