<br> A reliable swimming aidfor beginners: A fantastic training aid to assist beginning. swimmers to overcome fear, enhance skills, andmaster balance in the water. <br> SAFE: To avoid chocking for the beginer, the best way to do so is to use our SWII. Simply rest your chest on the kickboard, press and hold the buttons on both sides to start. Kid's chest can now lean on the board at all time, the safest way to play with water for the beginer. Release any button to stop if emergency, safe enough. Designed for easy holding. Easy to hold and swim with, also easy to learn. <br> For charging, any issue about the battery, please fell free to contact us.