The new and improved Cube Pro adds a pressure gauge and improved battery over the regular Cube 

• Compact, Convenient and Ultra-Light: 120g
• Small in Size, Big on Power: Equipped with a high-powered 420mAh battery, it can inflate two 700*25C tyres from 0-110psi.
• Basically a Reusable CO2 inflator.
• Unlike CO2 cannisters, the Cube Pro can be taken on a plane for international bike adventures!
• Heat-resistant silicone case
• Schrader valve compatible with a simple nozzle swap.
• 120psi Maximum Pressure
• Pressure Gauge acurracy of +/- 1psi
• USB-C Charging. Charged to full in 30mins