Chinese Jet Underwater Thruster 500w 4400mAh Purchased on Amazon. Here is the product: https://www.amazon.co.jp/dp/B0CFVYN7YS?ref=ppx_yo2ov_dt_b_fed_asin_title The title says 1000mAh, but the one I received was 4400mAh. I used it once, and it lasted about 60-80 minutes at 30%-50% output. Everything in the photos is included. All accessories are present. Please make your decision based on the photos, and no returns or claims will be accepted.