new one-to-two bluetooth wireless microphone 18650 lithium battery ⊙⊙3

New model one-to-two Bluetooth wireless microphone is now available [Celebration]
18650 lithium battery ³ 24
New Model: SP-260202-3
Material: ABS tube body - metal mesh head
Range: 20-50M
Packing Size: 27.9*14.5*6CM
Crate Size: 615*295*460MM
Packing Quantity: 30 PCS
Gross Weight: 20 KG
Net Weight: 19 KG
Color: Black [Rose]
18650 3.7V large capacity battery
Signal Strength: 4 dBm
Modulation System: GFSK.TT/4 DQPSK
Frequency Stability Factor: 25ppm
Sensitivity: -85dBm
Line Width: 1 MHz
Frequency Response: 40Hz-15KHz
Signal-to-Noise Ratio: 92dB