Built-in large-capacity battery, it supports wireless charging, built-in 4300mah large-capacity battery, with a battery life of up to 5. 5 hours. Wireless charging/USB charging for free selection, making you feel free to charge. Full-color touching screen in Chinese and English, 3.5-inch full-color touching screen. The interface supports Chinese and English, graphical Ul, and the new Flysky OS with complete functions. It is easy to click, with powerful functions and control in one hand. Real voice and vibration prompt, built-in speaker supports real voice speech and vibration prompts. Specifications: Brand: Flysky Channels: 18 Adaptable Receivers: All AFHDS 3 Receivers Model Type: Engineering Vehicles, Simulation Ship etc. Radio frequency: 2.4GHz Radio Frequency Power: 20dBm 2.4GHz Protocol: AFHDS 3 Channel Resolution: 4096 Battery: 1S (3.7V) 4300mAh (built-in) Charging Interface: USB/Wireless Charging Charging Time: 6h@5V*2A/7h@5V*2A (Wireless Charging) Life Time: 5.5h (Standard Accessories) Low Voltage Warning: 3.65V Antenna Type: Dual Antenna Display: HVGA 3.5 TFT, 320*480 Language: Chinese and English Simulator: USB Simulator Data Interface: USB, Non-standard Interface(USART), PHJACK(PPM) Temperature Range: -10& 8451;—+60& 8451; Humidity Range: 20%-95% Color: Black Size: 120mm*195mm*213 mm Weight: 1012g PWM Channels: 12 Distance:500m(Open without Interference Ground) Antenna type: single antenna Power: 3.5V-9V RSSI: Yes Data Interface: i-BUS/S.BUS/PPM/PWM Package Information: Package Size: 25.4*13.7*24cm Package Weight: 1591g Gift box package Packaging list: 1 * Receiver 1 * USB Cable 1* Some Stickers 1* Quick Operation Guide