Show your clients you're listening with these super pump wireless earbuds! They just need to pair their device to enjoy dynamic stereo sound or receive hands-free calls. They pair from up to 30 feet away. The +/- buttons advance through selections and holding them down changes the volume. The earbuds feature an LED indicator light and a 100 mAh battery (charging cord included). They'll get up to three hours of play time from these small earbuds that are a great fit for pockets, purses or travel bags!