BOYA Wireless 2.4 GHz Microphone x4 BY-W4

Specifications
BY-W4 TX
Transmission Type:2.4GHz ISM
Modulation:GFSK
Polarn Pattern:Omnidirectional
Operating Range:Up to 30m (without obstacles)
RF Output Power:<10mW
Frequency Response:50Hz-16kHz
SNR:>78dB
Sensitivity:-42dB
Built-in Li-ion Battery:3.7V/ 110mAh
Charging Port:USB-C
Charging Time:Approx. 2 hours
Battery Life:Approx.7 hours
Weight:Approx.12.5g
Dimensions:17.7x59x10mm

BY-W4 RX
Transmission Type:2.4GHz lSM
Modulation:GFSK
Operating Range:up to 30m (without obstacles)
RF Output Power:<10mW
Audio Output:3.5 mm TRRS Output Jack
Built-in Li-ion Battery:3.7V / 200mAh
Charging Port:USB-C
Charging Time:Approx. 2 hours
Battery Life:Approx.7 hours
Weight:Approx.18g
Dimensions: 20.2x65×12.8mm

Packing List
BY-W4 TX Transmitter×4
BY-W4 RX Receiver×1
3.5mm TRRS to TRS Output Cable for Cameras×1
3.5mm TRRS to TRRS Output Cable for Smartphones×1
3.5mm TRRS Male to Dual TRRS Female Cable×1
USB-C Charging Cable×3
Fur Windshield×4
Carrying Pouch×1