Rokit Boost SwageU Bluetooth Headphones - Built in Microphone - Compact Unique Design - Wireless Bluetooth Headset - Music and Hands Free Call Streaming (White) IMPORTANT NOTE: Please download the manual below the product details to know the working functionality of the product. Enhancements: EQ for better sound control. Memory flex neck strap. Support handsfree dialing e.g. Siri... SwageU Bluetooth Headphones sports premium comfort with lightweight and trouble-free, magnetic earbuds, wearable design. Reliable wireless pairing provided by Bluetooth Version 4.0 technology SwageU Bluetooth Headset comes with a Built-in microphone for easy, hands-free communication . 8 hours playback time. 100 hours standby time. Multipoint HFP Connection to 2 Mobile Phones simultaneously.