Xiaomi company unveiled Massager, which should deal with back problems. Massager is called Xiaomi Mini Neck Massager. Its main application area - cervical spine, although they can be massaged and other points, eg, в области колен. 
As we are assured developers, device just 15 minutes, can relax the muscles and restore normal blood circulation in the area of the 7th cervical vertebra. The device mimics the classical hand massage. It works with a motor, that provides up to 5800 per minute. Cost Xiaomi Mini Neck Massager, according to preliminary information, is about 1100 hryvnia.