Currently available in black, green, and khaki (with a glossy finish) Single switch independently controls both sides of the pickup, powered by 2 AA batteries, with a working time of over 200 hours The wearer experiences a 6x sound pickup effect with a 3.5mm dual-channel audio interface that can connect to phones, computers, and other audio devices Net weight of product: 360g Product gross weight (with packaging): 400g Packaging method: neutral paper box (kraft paper with PE bag inside) Package Contents: Earphones*1 User Manual*1 External Audio Cable*1 Expanded size: 14*12*23 Collapsed size: 12*10*13 Packing quantity: 40 Box size: 55*52.5*29 CM Box weight: 16.2KG