Best Portable Wireless Bluetooth Speaker with NFC Tap & Play Technology- The Trans-speaker - Built in Hands Free Speaker Phone, Works with Any Blue Tooth Smart Phones, Laptops, Tablets, Mp3 Players, Computers NFC + Bluetooth chipset and the enhanced bass resonator offer class-leading performance for crystal clear; Incredible sound quality, with amazing sound for music, movies, games & chatting Weights 330 grams; Connection range 33 feet; Frequency response 180 Hz-20KHz Hands-free answering of incoming calls on your iPhone, smart phone or other Bluetooth enabled cellphone devices supported by built-in Mic. Attractive, compact size to carry around the house, take with you in the car (or on the go) and control your sound everywhere you go;Up to 10 hours of playtime powered by a internal rechargeable lithium battery so you can enjoy your music all day Easily connects to Bluetooth-enabled devices: smart phones, iPads, laptops, desktops, MP3 & DVD players, HD televisions, etc.; micro USB for charging; 3.5MM audio-jack for non-Bluetooth devices