Urge Basics SoundBrick Plus NFC Ultra Portable Wireless Stereo Bluetooth Speakers with Built-In Microphone; Compatible with iPhone, Samsung, Smartphones, iPad, Surface Tablets and Mp3 Players Yellow NFC Pairing Technology allows for easy, instant pairing of devices. Don't worry about charging it all the time the built-in Lithium Ion battery lasts up to 8 hours. Multi-Function System: Easily answer calls using the built-in microphone. It will automatically pause your music when you receive a call. The Sound Brick+ has two 3W speakers that deliver crystal clear stereo sound and base+ technology for deep, rich base. Connect wireless through Bluetooth. Stream music, games, movies, TV, and phone calls. Compatible with most Bluetooth devices: Apple iPhone, iPad, Samsung Galaxy, HTC.