Longer diving time: The enhanced version Q4 can be used for up to 5.5 hours, allowing users to enjoy a longer diving experience compared to the standard 3-hour model. More powerful: With a rated power of 240W, the enhanced version Q4 provides a more powerful performance than the standard model, which has a rated power of 180W. Increased air supply: The enhanced version Q4 has an air supply flux of 56L per minute, which is higher than the standard model's 52L per minute. This means that users can enjoy a more comfortable diving experience with better air circulation. Greater diving depth: The enhanced version Q4 can reach a maximum diving depth of 15m, while the standard model's diving depth is limited to 10m. This means that users can explore deeper waters and have a more exciting diving experience. Longer battery life: The enhanced version Q4 has a battery capacity of 80000mAH, which is twice the capacity of the standard model's 40000mAH. This means that users can enjoy longer diving sessions without worrying about running out of battery power. Portable and lightweight: Both models have a compact size of 27.5 * 19 * 17.5cm and a weight of 5.8kg, making them easy to carry and store. Users can take them anywhere they want to go, without being burdened by heavy equipment. strong Product Parameters: /strong br br Product Model:Classic version Q3 br br Length of use: 3 hours br br Rated power: 180W br br Air supply flux: 52L / per minute br br Diving depth: Max diving depth of 10m br br Battery capacity: 40000mAH br br Product Model: Enhanced version Q4 br br Length of use: 5.5 hours br br Rated power: 240W br br Air supply flux: 56L / per minute br br Diving depth: Max diving depth of 15m br br Battery capacity: 80000mAH br br Both Model Product weight: 5.8kg br br Both Product Specifications: 27.5 * 19 * 17.5cm