100% brand new Introduction: AFHDS (automatic frequency hopping digital system), is developed by FLYSKY for all the Radio Control model lovers and is patented by FLYSKY at home. The system is specially developed for all the Radio control models, that offers super active and passive anti-jamming capabilities, very low power consumption and high receiver sensitivity. With extreme rigorous testing by engineers and studying the markets for years, FLYSKY AFHDS is now considered to be the one of the best systems available in the market. You may need extra receiver: FS-GR3F Features: Transmitter Specifications: -Dimension: 154 x 127 x 270mm -Net Weight: 395g -ANT Length: 26mm (2.4GHz) -Channels: 3ch – Frequency: 2.4GHz – Modulation: GFSK – System Type: AFHDS – Sensitivity: 1024 – LCD Dimension: 100mm (L:95 x W:3mm) / 4 inches (L:3`12 x W:1`3 inches) – RF Power: no more than 10mW – Low Voltage Warning: Yes (less than 9.5V) – DSC port: Yes (3.5mm) – Charger Port: Yes – Power: 12V DC (1.5V x 8) – Model Type: RC Car / Boat – Certificate: CE (0678) FCC Receiver Specifications: – Dimension: 37.6 x 22.3 x 13mm – Net Weight: 5g – ANT Length: 26mm – Channels 3ch – Frequency: 2.4GHz – Modulation: GFSK – System Type: AFHDS – Sensitivity: 1024 – RF Receiver Sensitivity: -105dbm – Power: 4.5 – 6V DC (1.5V x 4) – Model Type: RC Car / Boat – Certificate: CE (0678) FCC Package Including: – 1 x FlySky GT3B FS-GT3B 2.4Ghz 3CH Transmitter – 1 x 2.4Ghz Receiver – 1 x Bind Plug – 1 x Manual File in a CD You may need (please click): Please contact us if you have not receive the item over 30 business days. However, it may delay due to industrial strike action, severe weather, custom reasons or peak seasons, such as Christmas/New Year Holidays. Returns For any exchange or refund, we need the original receipt or a record of the purchase in our system, and the product must be in its original condition, including the box, UPC bar code, packaging, and all accessories. Contact Us We always trying to provide the best service and reliable products for every customer. We do appreciate your positive feedback with 5stars rating comments! Our system will leave feedback to you automatically after we receive your payment. We know that sometimes when order problems arise, it can be very frustrating, we are there with you every step of the way to make your experience more pleasant. Please feel free to contact us for solution, when you have any questions. Please contact us .