Blank USB flash drives; Computer memory devices; Computer mouse; Contacts, electric; Data processing equipment, namely, couplers; Headphones; Horns for loudspeakers; Smartphones; Smartwatches; Wearable activity trackers; Cases for smartphones; Chargers for electric batteries; Electrical plugs and sockets; Global positioning system (GPS) consisting of computers, computer software, transmitters, receivers, and network interface devices; Rechargeable batteries; Solar batteries