Material: PP + Silicone Default Flange Size: 24mm Silent: Noise less than 50dB Suction Force: 280～300mmHg Charge Time: About 1.5hrs Usage Time: 140 mins/5~6 sessions Charging Port: Type-C (compatible with 5V 1A adapter) Container Capacity: 6 oz (you are recommended to pump within 4oz)