Battery: Recommended 4S 450-750mAh (Not Included)

Introducing the CoolBell Multi-Functional Backpack

1x ELRS Receiver

giving you the flexibility to choose the storage option that best suits your needs

coolbell 15 waterproof outdoor backpack usb charging laptop travel work Color.:Black Battery: Recommended 4S 450-750mAh (NotIntroducing the CoolBell Backpack: Functionality Meets Style Upgrade your lifestyle with the CoolBell Backpack, carefully designed to combine style, comfort, and organization in one convenient package. Ideal for men and women alike, this versatile bag is the perfect companion for travel, business trips, leisure activities, sports, and daily commutes. Crafted with high quality materials and packed with essential features, the CoolBell Backpack brings