Enhanced sensor technology with three adjustable levels, compatible with various hand soaps.Detachable cup body for faster liquid replacement.Upgraded sensing method, resistant to strong light interference.No worries about pipeline blockage; double-click to activate the unclogging mode.One-piece molded body, overall IPX5 waterproof, washable but not submersible.Type-C interface, one-time charge lasts for three months.Transparent visible window for easy monitoring of remaining soap.Size.