•【1L Capacity for Extended Underwater Time】The 1L oxygen cylinder allows divers to stay underwater at depths of 1-10 meters for 10-20 minutes, ideal for beginners and recreational diving. •【Versatile Inflation Options】Supports three inflation methods: manual high-pressure pump, refill adapter, and electric inflator, providing flexibility for various situations. •【Durable Aerospace-Grade Construction】Crafted from 6061T6 aluminum, meeting professional diving equipment standards for safety and longevity. •【Integrated Pressure Gauge】Features a built-in pressure gauge, allowing divers to easily monitor remaining air supply for enhanced safety. •【Ergonomic Silicone Mouthpiece】Equipped with a comfortable silicone mouthpiece designed for extended use and optimal breathing comfort. •【Safety Pressure Relief Valve】Incorporates a top-mounted pressure relief valve for easy and safe depressurization when needed. •【Travel-Friendly Design】Lightweight and portable, with the ability to separate the breathing valve for air travel compliance. Specifications: •Cylinder Capacity: 1L •Material: 6061 Aviation Aluminum •Maximum Working Pressure: 20 MPA / 200 BAR / 3000 PSI •Recommended Diving Depth: Up to 10 meters for recreational use, up to 30 meters as backup •Usage Duration: 15-20 minutes (varies with depth and breathing rate) Package included: •1 x Oxygen Tank •1 x Shoulder Carrying Strap •1 x Diving Goggles •1 x High-pressure Air Pump •1 x Carrying Bag •1 x Accessories Kit •1 x Adapter •1 x Multi-language User Manual (Chinese, English, German, Japanese, French, Spanish, Italian, Russian)