Full-Color Screen: Intelligent LCD full-color touch screen, upgraded user experience. Multiple visual functions like music control and incoming call notifications can be operated on the charging case screen Bluetooth 5.4 Connectivity: Upgraded wireless 5.4, easy and fast pairing, connection is more stable with no latency Clear Call Performance: Wireless bluetooth ensure phone call clarity and uninterrupted conversations no matter where you are Long Battery Life: Match the charging bin to listen for a whole day, listen to songs for about 4 hours when the power is in emergency, charge quickly for 2 hours, and last for full power Ergonomic Design for Comfortable Fit: The ergonomic shape and light ear bud reduces the pressure in the ear canal while maintaining stability, guarantee a comfortable and secure fit in any ear, even for women and kids Advanced Noise Cancellation: Combines ANC+ENC dual noise cancellation with a noise reduction depth of up to -25dB, easily eliminating external noise and disturbances Specifications: Bluetooth Version: 5.4 Screen Size: 1.47 inches Noise Reduction Depth: 25-30dB Model: WS-26 Play Time: 4H Driver Unit: 13mm Frequency Response: 20Hz-20KHz Battery Capacity: charging case 350mAh + earphone 30mAh + earphone 30mAh Rated Power: 5MW Input: 5V-350mA Charging Time: 2h