1、Designed for DJI Tello drone, it can be connected to the mobile device running APP. Thus realizing various operations through the joystick and button control your Tello. 2、Simple operation, mature wireless transmission technology, bt wifi distance is about 8m. 3、Anti-slip grip, ergonomic smooth streamline design, high quality texture, more comfortable to handle. 4、Precise operation improves operating ability, sensible joystick and enhanced direction key provide more fun. 5、Built-in 500mAh battery, easy to charge. STARTRC Wireless Controller 2.4G Transmitter for DJI Tello Drone Console Joystick Controller with Phone Holder Features: Designed for DJI Tello drone, it can be connected to the mobile device running APP. Thus realizing various operations through the joystick and button control your Tello. Simple operation, mature wireless transmission technology, bt wifi control distance is about 8m. Anti-slip grip, ergonomic smooth streamline design, high quality texture, more comfortable to handle. Precise operation improves operating ability, sensible joystick and enhanced direction key provide more fun. Built-in 500mAh battery, easy to charge. Specifications: Brand: STARTRC Item name: DJI Tello Wireless Controller Material: ABS Color: Black Working voltage: DC3.7V Working current: 30mh When used continuously: 15H Quiescent current: <35uA Charging voltage/current: DC5V/300mA BT Wireless transmission: ≤8M 2.4G remote control distance: ≤50M Battery capacity: 500mAh Standby time: 30 days at full power Item size: 155 * 110 * 60mm Item weight: 222g Package Information: Package size: 16 * 11.5 * 7cm / 6.3 * 4.5 * 2.8in Package weight: 347g Package List: 1 * Tello Wireless Controller 1 * Phone Holder 1 * Tello Wireless Controller 1 * Phone Holder