Power switch structure design, main control chip frequency 300KHZ, with overcurrent/overheat protection function, efficiency up to 92%. With shielding cover protecting components, output cable with magnet ring. With reverse polarity protection. Small size and light weight. Specifications: Output capacity: 5V/3A Voltage input: 5.5-26V(2-6S Lipo battery) Wave: 50mVp-p(if 2A/12V) Size: 26 x 12 x 11mm Weight: 20g Color: as shown material: plastic Package Contents: 4 x BEC(UBEC) 5A 5V Receiver Power Supply Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.