ADVANCED CSR 4.0 CHIP: Get high quality audio sound than the Bluetooth 3.0 version, both in playing music and answering calls.
EXTRA-LONG PLAY TIME: Built-in battery provides up to 10 hours’ play and talk time, 120 hours’ standby time, only takes 1.5 hours to fully charge it. 
TWO-LINK: Can connect two bluetooth devices at the same time. Bluetooth range reaches up to 30 feet in open space without obstacles. 
WIDE COMPATIBILITY: Compatible with most Bluetooth enabled devices like smartphone, MP3, tablet, etc, ideal for home or vehicle audio systems. 
EASY CONTROL: You can answer phone calls or control music on the receiver. Change volume, play/pause/skip music, answer calls, redial the last called number with ease.( NOTE: This receiver doesn't turn on automatically,Please long press the ”Multifunction Button”button about 3 seconds,when it turned on the blue light will flash,then connect it with your Bluetooth devices.)