Atheewon Bluetooth Headset V5.3, Bluetooth Earpiece with ENC Noise Canceling Mic, 120Hrs Talk Wireless Headset with LED Display, IP7 Waterproof for Trucker Printers & Scanners 3 Wire Variable Frequency Device

3 Wire Variable Frequency Device Automatic Voltage Regulation Dimensions: 12"-W x 16"-H x 10"-D LED Display Weight: 28 lbs 3 Phase Delta

Ear placement    In Ear

3af) Ex db IIC Gb Image Sensor: 1/2

01 micron Ultra Filtration membrane can reduce most of the harmful substances larger than 0

Atheewon Bluetooth Headset V5.3, Bluetooth Earpiece with ENC Noise Canceling Mic, 120Hrs Talk Wireless Headset with LED Display, IP7 Waterproof for Trucker Printers & Scanners 3 Wire Variable Frequency DeviceAtheewon Bluetooth Headset V5. 3, Bluetooth Earpiece with ENC Noise Canceling Mic, 120Hrs Talk Wireless Headset with LED Display, IP7 Waterproof for Trucker Ultra Long Battery Life: The bluetooth headset can provide up to 20h of uninterrupted talk time in just 1. 5h of charging. The charging case that comes with a large capacity battery extends the standby time to an impressive 120h, which overcomes the difficulty of battery shortage during business