Thermaltake LUXA2 Lavi S Wireless Bluetooth Over-Ear Headphone with 4 Watts Duo Speaker AD-HDP-PCLSBK-00 Superior triple mode technology: wireless headphone, aux-in play, and duo speakers in one. Effortlessly stream high-quality tunes with maximum ease with this lightweight durable and compact headphone, making it the perfect travel and sports companion. Connectivity Technology: Wireless Optimal sound & effortless control: powerful 2 Watts+2 Watts external speakers around your ears create ultimate music experience. Easy one-tap switch to share music with friends or solo listening. Aux-in mode for wired play when a line-in is preferred. Long lasting playtime: Hi-grade battery provides up to 30 hours playtime (headset)/ 3 hours playtime (speaker) and requires only 2 hours to fully charge (0-100%) meaning you'll be ready and raring to go in next to no time. Engineered in style, function, and comfort: Built-in microphone, folding and adjustable headband, plus powerful 40 mm neodymium drivers give the most dynamic user-to-music experience with perfect balance across the bass range, mid-range and treble tones. Black Shield Design. Featured in black on black surface and matte black finish with Fireproof ASB UL94 V-1 finish for heat resistant and high end touch.