Instant Pairing & Seamless Connectivity Experience effortless pairing with Bluetooth 5.4 and dual-channel transmission for faster speeds and better stability. Simply take the earbuds out of the charging case, and they will automatically power on and connect to your device. With support for HSP, HFP, A2DP, and AVRCP, these earbuds deliver low-latency audio and work seamlessly IPX7 Waterproof & Comfortable Fit Our i27 sports headphones feature a soft, ultra-light earhook design for a secure and comfortable fit, weighing just 7g each and including three sizes of silicone earplugs (S/M/L) for personalized comfort. With IPX7 waterproof certification, they resist sweat, rain, and splashes, making them perfect for workouts, running, and outdoor activities. 10-Minute Quick Charge & Long Playback Enjoy up to 6 hours of playtime on a single charge, extended to 54 hours with the 400mAh charging case. The Type-C quick-charge fully charges the case in 1.5 hours, and a 10-minute quick charge provides 2 hours of playback. Easily monitor power status with the LED percentage display, ensuring all-day use without battery worries. Smart Touch Control for Effortless Convenience Effortlessly manage your music and calls with intuitive touch controls play/pause, skip tracks, adjust volume, and activate Siri or Google Assistant with just a tap. Perfect for hands-free convenience and a premium listening experience. Stay in control without reaching for your phone, whether you're working out, commuting, or relaxing at home. Clear Sound & Noise Cancelling Mic Experience crystal-clear sound quality with Bluetooth 5.4 and true wireless stereo technology. The built-in noise-cancelling microphone ensures clear calls, even in noisy environments, making it perfect for music, calls, and voice assistants. Immerse yourself in rich, detailed audio whether you're listening to music, podcasts, or taking calls.