specifications: 

Bluetooth Version: RSE V4.1

 Bluetooth profile: A2DP, AVRCP, HFP, HSP range: 33 feet (10 m)

 Working time: 12-15 hours for music 

Charge time: 1-2 hours Standby time: 260 hours

 Charge input: USB 5 V Dimension (L * W): 3.15x2

 Inches weight: 0.42 oz package comprising: 1x S580

 Bluetooth Headset 1x USB charging cable 1x User's Guide

World's Longest Play Time with 15 Hours of Battery S580 is designed with Longer Play Time and Performance in mind, the lightweight and fashionable shape of the S580 Headphones S580 These a perfect fit, not only does the S580 offer a comfortable fit, the headset also sounds decent and offers 12 -15 hours of battery life to get through a day. * Audio recreation varies depending on the volume output level (dB) and audio content-a larger output gives a shorter battery life. So, S580's actual audio recreation vary on different devices. tested multiple units with iPhone 6s Perfect accessory for your versatile lifestyle Work: Stream music privately and leave 1 open ear to stay aware of your surroundings. home: plug into your favorite podcast while doing chores around the house. play: fall asleep watching Netflix without disturbing your partner. (the S580 earpiece does not flash all the light once it's on) Wireless Freedom hear streaming without holding your phone or getting tangled in the wires. matching * * to enter pairing mode, press and hold multifunction button until red and blue LED flashes alternately in (5 + sec), should also hear a "ready to pair" voice message OR the in-ear is ONLY powered on, NOT in Pairing Mode keep things simple 1 control button to power on / off, Bluetooth pair, play / pause audio, answer / end calls.