-18%
(Note: Power bank not included. works with any standard power bank.). MASSAGE FUNCTION US Patent No. : US 10,888,494 B2 and US 11,723,831 B2.USB CHARGING PORT US Patent No. : US 10,574,071 B2, US 10,931,137 B2, US 10,931,138 B2 and US 11,601,009 B2.