The Porodo Soundtec Wonder TWS Earphone with Touch Screen offers an advanced blend of features and modern technology. With Bluetooth V5.4, these earphones provide a stable working distance of up to 10 meters. The 13mm drivers deliver rich, clear sound, and the earbuds offer up to 4 hours of music playback at 60% volume, with a standby time of over 60 hours. They also support 2 hours of call time and have a frequency response range of 80Hz-16KHz. Additional features include Active Noise Cancellation (ANC), a remote camera trigger, and an integrated flashlight. The charging case, with a battery capacity of 350mAh, charges in just 1.5 hours, while the earbuds have a 30mAh battery each. The earphones also feature a 1.47-inch touchscreen with 16 display languages, providing easy access to controls and settings. With dual 2.75-inch speakers, these earphones ensure an immersive audio experience. Specifications Frequency Response: 80Hz-16KHz  Charging Time: 1.5 H  Battery Capacity : 350mAh (charging case) 30mAh (Earbuds) Bluetooth Version: V5.4  Bluetooth Chip: JL7003DB  Working Distance: 10M  Driver Size: 13mm  Standby Time : >60H  Music Playback Time: 4H at 60% Volume  Call time: 2hr  Speaker Size: 2.75 inch*2