Happymodel Bassline is a small 2" copter intended for flying outdoors in the garden, in the park, on the playground or in the gym. At the heart of the copter is the Happymodel X12 board. It contains a FC with an F411 processor, 12A ESC, a Frsky receiver and an OpenVTX analog video transmitter with a power of up to 400mW. The FC has output UARTs, so it is possible to connect an external RC receiver. The video transmitter is complemented by a Caddx Ant nano camera. The drive is provided by EX1103 11000Kv motors in combination with 2" Gemfan 2023 propellers. A 2S battery with a capacity of 350-650mAh. The battery holder is suitable for batteries with a width of 17 mm and a height of 13 mm. Everything is held together by a carbon frame. Thanks to the side springs, it is durable and can withstand more than one fall. Bassline without battery weighs 40 grams. Its light weight makes it fast and agile.