With BackBeat 500 Series wireless headphones, enjoy up to 18 hours of deep, rich sound on a single charge and a lightweight, cushioned design that lets you listen in comfort. FREEDOMWARE Step up to a wireless experience. Listen more, charge less From commute to class to coffee shop, listen on the go without missing a beat. Get through your day with up to 18 hours on a single charge. DeepSleep mode helps conserve power when you're not using your headphones. And when you don't have a place to recharge, listen uninterrupted with a 3.5 mm backup jack. Bring music to life Don't just hear your favorite tracks, feel them. 40 mm drivers and advanced acoustic technology deliver audio balance and deep, rich sound-whether you're listening to music, watching movies, or taking a call. 18-HOUR BATTERY Get through your day on a single charge with up to 18 hours of wireless listening. IMMERSIVE AUDIO Advanced acoustic technology delivers the right balance and deep, rich sound. EASY ON EAR CONTROLS Play/pause, skip tracks, adjust volume, and easily take calls with one touch. MEMORY FOAM EARCUPS All-day comfort and sound isolation lets you listen for hours. Move freely with a lightweight design No matter how long your days are, your headphones won't weigh you down. Soft memory foam earcups not only isolate sound, they rotate to lay flat so you can wear them comfortably around your neck for hours. Manufacturer: Plantronics, Inc. Manufacturer Part Number: 208909-01. Brand Name: Plantronics. Product Line: BackBeat. Product Series: 500. Product Model: 505. Product Name: BackBeat 505 Headset. Product Type: Headset. [Technical Information] Connectivity Technology: Wired/Wireless. Wireless Technology: Bluetooth. Wireless Operating Distance: 32.8 ft. Sound Mode: Stereo. [Earpiece] Earpiece Design: Over-the-head. Earpiece Type: Binaural. Driver Size: 1.57". [Interf