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2mm)●Bushing x 1(Φ12
Remarks Medium servo (tail/rudder)
Instruction: Specification: High strengthuff0clight weight
High Speed
HobbyWing OTA Programmer CLB21 Helicopter Kits 2mm)●Bushing x 1(Φ12Over The Air Programming Device fits in your pocket OTA Programmer is a module which adopted the Bluetooth communication technology for transferring data between an ESC and a smart device (Android phone, tablet, and etc). It makes the wireless communication between ESC and smart device possible; the user can easily program and upgrade ESC and monitor data transferring via this unit. Features Why you need this? HOBBYWING over the air firmware update.