USB External Sound Card Lot / Boards

Lot of external sound cards sold together or separately. 1x adapter with 3 USB ports—volume regulator and 4 types of equalizer, brand CLS. 1x USB-A external sound card, connects 3.5 mm microphones and headphones, brand Tech Rise. 1x 4-input, 1-output 3.5 mm audio switcher, enables easy audio switching between devices, unbranded. Hand-delivery available in Lisbon: Arroios, Saldanha, Picoas, or another agreed location. Possibility of shipping via CTT.