[Bluetooth 5.3 and One-Step Pairing] The wireless earbuds feature state-of-the-art Bluetooth 5.3 technology, which increases audio data transfer speeds by up to 85 per cent and enables a more stable connection and lower power consumption. After removing the earbuds from the charging case, the wireless earbuds instantly pair and automatically connect to the last paired device.[Excellent Stereo Sound and Clear Calls]The W23 bluetooth headphones adopts 13.4mm speakers, which enhances the sound quality details and brings you better music enjoyment. And the bluetooth headphones has a built-in call noise reduction microphone to make calls clearer.[40 Hours of Playback and LED Digital Display]Single wireless earphones can be used for 7 hours, with the charging case can be used for 40 hours. Double digital display can better view the power usage of the earphones.[Comfortable Fit and IPX7 Waterproof] The ear buds is ergonomically designed to fit the inner contours of the ear perfectly, ensuring comfort and resistance to falling off. The wireless headphones is nano-coated with IPX7 waterproof technology to protect against splash damage caused by sweat and raindrops, perfect for sports and everyday work.[Easy Controls and Wide Compatibility]Free your hands by touching the bluetooth earbuds to switch music, answer calls, control volume and more. Wireless earphones can be easily paired with iOS, Android devices (bluetooth-enabled windows laptops/tablets/desktops).