One-step pairing and Smart Touch Control: Open the charging box cover and the wireless earphones will automatically connect to the last paired device. Bluetooth earphones with smart touch control button are multifunctional, such as playing music, answering calls, changing songs and activating Siri.35 Hours of Playback and HiFi Stereo Sound Quality: Once fully charged, the X15 Bluetooth headset offers you 7 hours of listening, while the charging case can extend this time to 35 hours. X15 earphones guarantee pure sound quality and clear calls, giving you premium music quality and HiFi stereo quality.IPX7 Waterproof: The X15 wireless earphones have IPX7-rated protection that withstands daily splashes of water, sweat and rain. Perfect for fitness and travel.Ergonomic Design and Ease of Carrying: The Bluetooth earphones are ergonomic and equipped with 3 silicone tips, designed for different ear shapes to ensure comfortable wearing. The charging case is small, weighs only 42g, and fits easily in your pocket.Accurate LED Display & Exquisite Appearance: The wireless bluetooth headset uses unique LED display technology to accurately display the remaining power of the charging case. The look is 100% spray shine, creates delicate touch and exquisite appearance.