Batteries; Battery packs for laptops; [ Cabinets for loudspeakers; ] Electric cables and wires; [ Electric contacts; ] Electrical connectors; [ Electrical plugs and sockets; Galvanic cells; Headphones; ] Laptop computers; [ Loud speakers; Mouse pads; Portable media players; ] Power supplies [; Smartwatches; Sound recording apparatus; Voltage stabilizing power supply; Wearable activity trackers; Wireless headsets for smartphones; Wireless indoor and outdoor speakers ]