Key Features. 5 hour battery life with an extra 15 stored in the case Crystal clear calls with dual-min ENCEasy touch controls Auto-pause detection Half in-ear design for comfrtable wearing. Long battery life of 20 hours means that you can use it from morning till night Thanks to the power consumption control of the new chip the earphones can be used for about 5 hours on a single full charge & 20 hours in combination with a charging case. The battery endurance means that you can listen to music all day long. With dual microphones noise during calls is reduced making sure there is no disturbance Each earphone is equipped with two built-in high-sensitivity microphones which use beamforming technology to eliminate the background noise during calls allowing the other user to hear you clearly even in noisy environments. Smart free & truly wireless Truly wireless design free of restrictions. You can take either left or right earphone as you wish flexibly switching between single & dual ear mode. Dual ear mode provides wireless dimensional sound while single ear usage offers a freer experience. A large dynamic driver makes the sound rich & natural The dynamic driver with a 14.2mm large composite diaphragm is used to make the sound fuller & richer with a more natural feel restoring more real texture & details. At the same time AAC audio codec technology is supported to improve the audio quality & experience providing users with clear sounding audio Comfortable half in-ear design for a secure fit The half in-ear design fits the ear canal snugly for more comfort & stability inside & out. A single earphone only weighs 4.7 g. The compact & lightweight body makes it easier to wear & greatly reduces fatigue caused by prolonged wear. Simple Touch Controls Operations such as to play/pause music answer/end a call wake up the voice assistant can be performed by simply double tapping the earphones. Easily control without operating the mobile phone. Wearing detection pauses when the earphones are taken out Highly sensitive capacitive in-ear wearing detection is used to detect wearing status. While listening to music pause by taking out the earphones & resume by putting them back in. Enjoy the music from the moment the earphones are in place & never miss any of your favorite parts..