<ul><li>Foldable portable design.</li><li>Easy to controls your headphones.</li><li>Adjustable headband.</li><li>Talk-Time: 8 Hours.</li><li>Use time: 4 Hours.</li><li>Battery: 250mAh Rechargeable Lithium Battery.</li><li>To adjust the volume.</li><li>Switch songs.</li><li>Answer incoming calls.</li><li>Reject a call.</li><li>Hang up the call.</li><li>Bluetooth play.</li><li>Hands-free calls.</li><li>Bluetooth back even.</li><li>Voice prompts.</li><li>Power display.</li><li>FM Radio, TF T-Flash (Memory Card option), EQ (Equalizer).</li><li>Bluetooth Wireless Connectivity (V 4.1 + EDR).</li><li>Memory Card Slot.</li><li>Standby Time: 12 Hours.</li><li>Music Time: 3.5-5 Hours.</li><li>Talk Time: 8 Hours.</li><li>Built-in Microphone.</li><li>Optional Audio Jack.</li><li>Built-in TPT Antenna And Radio Set.</li><li>Sweat-Proof.</li><li>Matte Finish.</li><li>Noise Cancellation Technology.</li><li>IOS System Display Battery Capacity.</li><li>Built-in Voice Prompt.</li><li>Charge Time:1-1.5 Hours.</li></ul>