This is the CC BEC 10A Receiver Battery Eliminator by Castle Creations. FEATURES: Eliminates the need for a receiver and servo battery pack Draws higher voltage from the motor batteries and drops it to a voltage level suitable for the receiver and servos INCLUDES: One CC BEC receiver battery eliminator REQUIRES: Installation in the aircraft SPECS: Length: 1.2" (30mm) Width: .6" (15mm) Height: .4" (10mm) Weight: .4oz (11g) Input voltage: 5V to 25.2V (2S to 6S LiPo) Current output: 10A Peak Selectable Output: 4.8 - 9.0V