Brand NA Model PL-718B Color Blue + white + black Material ABS Quantity 1 Functions This neck therapy instrument has built in electric pole patch vibratingand tapping the relative nerves can bring you comfortable feeling and enjoyment.; Massaging neck point could stimulate blood circulation release fatigue and prevent the neck disease; Designed by human body engineering; Two electric pole patch built in; Far-infrared Hyperthermia; Massaging many part of the human body Power Supply 2 x AAA batteries not included Power 3 W Features Frequency: 1~1200Hz; Pulse width: 20~400US; Working time: 15~30 minutes Certification ISO 9001 Packing List 1 x Massager 2 x Silicone cards 1 x English user manual