The SDW 10 HS headset offers perfect customized fit with the FlexFit™ system offering 3 wearing style solutions. Choose between headband, ear hook and neckband. All wearing styles can be worn on the left or right ear . A busy light on the headset indicates that you are in a call and helps you to remain undisturbed. To accept a call simply pick up the headset from the desk . Box contents: Headset, headband (mounted on headset), earhook/neckband adapter with pre-mounted earhook, earbud (L) and distance holder, earhook stabilizer (detachable), neckband (detachable), extra earbuds ( S, M), printed Headset Quick Guide, printed safety guide, printed in-compliance leaflet.