•Specification
•Material: ABS
•Color: Black
•Receiver battery capacity: 100mAh
•Microphone endurance: 4-5hours
•Box size: about 9.3*3*12.7cm
•Product size: about 8*2*1.5cm
•Receiver connector: 3.5mm diameter
•Microphone: digital silicon microphone
•Bluetooth version: 5.0
•Input voltage: 5V
•Signal to noise ratio: ≥60dB
•Frequency response: 20HZ-20KHZ
•Transmission distance: 20 meters
•Quantity: 1