... power off 3.Heat up instantly,durable,comfortab Rechargeable electric warm hot water bagProduct Features: 1. Heated instantly, portable & durable not only soft ... but also is ideal heat therapy apparatus;2. Automatic keep warm function. After fully re-charging, it can reach up to ... .5kgs, convenient to carry wherever you go, and keeping you warm all over the winter. Others:1. Various colors, sizes, ...