This Beta75 Pro 2 frame is customized for Beta75 Pro 2 whoop drone. Light enough: only weighs 5.5g. Battery slot is suitable for both 1S & 2S battery.  By default, with the help of foam adaptor, the battery slot is designed for 2pcs 300mAh Lipo HV 1S whoop style battery. Motor mounting holes fit multiple types of motors.  The motor mounting holes on the Beta75 Pro 2 frame are suitable for BETAFPV's 0802 / 0703 / 0603 brushless motors. Thus, the frame can be used on Pro2 Series drones and 1S Pro Series (65pro/75pro). Specification Material: Clear plastic Diagonal motor to motor distance: 75mm Motor mounting hole: for 0802 12000KV  motors FC mounting hole: fully compatible with whoop style FC board mounting pattern, 26mm x 26mm Battery slot size: 11.5x16mm, for BETAFPV 300mAh 1S battery Weight: 5.5g Recommended Parts Propellers: 40mm 4-blade propeller (1.0mm shaft hole) Motors: 0802 12000KV Motors Batteries: BETAFPV 300mah 1S battery 2 pcs FC & ESC: F4 2S AIO Flight Controller and ESC Package This plastic durable package can protect the package from deformation during the shipping process. 1 * Beta75 Pro 2 Whoop frame