SpeedyBee Goggles BEC 10C or was it the higher

or was it the higher quality NSK bearings coupled with a higher grade titanium alloy shaft

It also can beep automatically when it detects the main battery has been ejected

Easy-to-reach top switches and sliders

Dimension: 62

SpeedyBee Goggles BEC 10C or was it the higherSpecifications Product Name SpeedyBee Goggles BEC Power Input Voltage Range 3 6S Power Input Connector XT60 Male Fast Charging Output interface USB C Port Supported Fast Charging Protocol PD3. 0 QC4+ PPS AFC FCP SCP PE2. 0 SFCP Max Fast Charging Power 20W Dimension(Main Body) 21*21*72mm Net Weight 28g Error Notification (flashing screen and beeping) Er1 Short circuit, power off Er2 Overheated, power off Er3 Overheated Er4 Overvoltage, power off (>26V)