◇ Set Contents Main unit, AC adapter, strap, instruction manual ◇ Product Specifications Model number: HC-21B Color: Black Size: Approximately 250 x 45 x 40mm (main unit only) Weight: Approximately 260g Power consumption: Approximately 3W Country of manufacture: China I received this item, which had been used about 10 times, and am selling it because I haven't had a chance to use it much. One treatment product will be included. Thank you for looking.