ZDW&reg; Portable Wireless Bluetooth Speaker with Handle,With Crystal Clear Sound and Built In Speakerphone,Support TF Card for Phones/Tablets/Laptops(Black) New Wireless portable speaker Bluetooth Technology allows you to connect with mobile phones, computers, tablets, iPods or any other Bluetooth device Seamlessly stream and share music, movies, games, phone and conference calls anywhere. Come with built in microphone and TF card slot,with hands-free and mp3 function. It will be convenient to answer or make phone call when listening music from your cell phone.True 3W+3W output for high quality stereo sound. Rechargeable 1800mAh lithium-ion battery can play up to 8 hr of music playback and quickly recharges in 3hrs. 3.5mm Audio Line In-It allows you to connect the speaker directly to a standard headphone jack. Includes a nifty carrying case, that allows you to take your speaker anywhere. Speakers are made of woven Kevlar diaphragm with spider and neodymium magnets, providing bass to as low as 40hz.