Wireless Microphone

1. bluetooth chip: Jerry material: ABS2. battery capacity: 3.7V 80mAh Charging voltage: DC5V3. transmission delay: 30MS receiving distance: 20M (barrier-free environment) frequency sound: 20Hz-20KHz4. Sensitivity: -42dB5. Receiver plug: Lightning (original chip, support for iOS system upgrade)6. Transmission range: the measured distance is 120 meters (no obstacles), and the best recommended use distance is 15 meters7.size: 110 * 25 * 130mm weight (g):47.3g