There are 2 massager tools as main picture shows one is black big another is Purple small . The big one needs AC charge when using . The small one contains battery inside. Body Therapy Massager tool .Freedom from pain. The big massager feels great because it delivers powerful 10 different patterns. Easy to use. The 12-inch massager is easy to use because its big enough for two hands yet light enough for one. The extra-long 6-foot cord makes use extra comfortable.