<ul><li>Product: Wireless Headset</li><li>BLUETOOTH WIRELESSCONNECTIVITY (V 4.1 + EDR)</li><li>MEMORY CARD SLOT</li><li>STANDBY TIME: 120 HOURS</li><li>MUSICTIME: 3.5-5 HOURS</li><li>TALK TIME: 8HOURS</li><li>BUILT IN MICROPHONE</li><li>OPTIONAL AUDIO JACK</li><li>BUILT INTPTANTENNAAND RADIO SET</li><li>SWEAT PROOF</li><li>MATTE FINISH</li><li>NOISE CANCELLATION TECHNOLOGY</li><li>MULTI-POINT ACCESS ALLOWSTO CONNECT TO 2 DEVICES AT ONCE</li><li>IOS SYSTEM DISPLAY BATTERY CAPACITY</li><li>BUILT IN VOICEPROMPT</li><li>CHARGE TIME:1-2 HOURS</li></ul>