High quality extra bass headphones Electric Heaters & Portable USB Fans it includes adapters for both

it includes adapters for both home and car use

it includes all the necessary socket sizes needed for home and auto repairs

elegant design

use your older printers with your newer computer

music on-hold function

High quality extra bass headphones Electric Heaters & Portable USB Fans it includes adapters for bothclosed type: yes dynamic type: yes driver unit: 30 mm dynamic ? dome type frequency response (hz): 5 ? 22,000 hz sensitivities (db mw): 102 db mw impedance (ohm): 24 ? at 1 khz cord type: y type cord length: 1. 2 meters plug: l shaped gold plated four conductor mini microphone: omni directional beat response control: headband, on ear