SG90 9G Micro Servo Motor - High Quality Small there's even a fairly good

there's even a fairly good temperature sensor with ±1°C typical accuracy (±3°C max)

Color: red

Material: Iron and Nylon

There is no "Bluetooth function"

On-board CE8301 Chip

SG90 9G Micro Servo Motor - High Quality Small there's even a fairly goodThe TowerPro SG90 mini servo is lightweight, high quality and lightning fast. The servo is designed to work with almost all radio control systems. The SG90 mini servo with accessories is perfect for R C helicopter, plane, car, boat and truck use. It equips Carbon Fiber Gears which makes the servo motor much lighter than the same metal gear motor. For small load applications using the metal gear, servo motor adds on unnecessary weight, so we suggest