The SRS-X3 speaker from Sony is a portable Bluetooth speaker with an elegant design and high-quality sound. Thanks to 20W of power and dual passive radiators, this Sony speaker delivers full-bodied audio with rich bass to enhance low-end tones. Simply connect your device via Bluetooth or NFC and you can stream your favorite tunes wirelessly from your phone, MP3 player, or laptop. With a built in microphone, you can even make and take hands-free phone calls right from the speaker. With up to seven hours of continuous playback on a single charge, the Sony SRS-X3 can keep the party going, even when it's not plugged in to a power source.