[TWS]: It provides 2x speed, 4x range and 8x data, and updates help reduce potential interference with other wireless technologies to ensure devices can co-exist within the increasingly complex global IoT environment. [Excellent sound quality]: it offers faster pairing and more stable connectivity. High definition stereo music output makes you enjoy listening, noise cancellation technology reduces ambient noise and echo, allows clear sound regardless of calls or music time. [Up to 12-Hour work time]: 2 hours of playback per charge of the ear-buds itself, and the storage case provides 6 times charging to the ear-buds. [Multifunction & Easy Operation]: One multifunction key control to answer phone call-in, reject phone call, phone hang-up, play music, Pause, Power on, Power off, [Compatibility]: Compatible with all wireless devices including Samsung S7 series, Note series, LG G3, G4, G5, G6, iPhone series, iPod series, Blackberry, HTC, Microsoft series, and wireless-enable tablets. Features: Music Playing Time: Up to 2.0-2.5 hours Charging Time of Headset: 50 minutes Charging Time of Battery Carrying Case: 1.5 hours Charging Earbuds Times from Battery Carrying Case: 5 times Battery Carrying Case Supply Power for Music Play Time: 6 hours Version: V5.0 Battery of earbuds: 45mAh Li-polymer Battery Battery of charging box: 300 mAh Standby Time: 100 hours Charging Voltage of Base: 5V Gift Box Weight: 90g Color: White Package Includes: 2 x I11 True Wireless Earbuds 1 x 300mAh Charging Box 1 x User Manual 1 x USB Charging Cable