Product Parameters： Bluetooth Version: V5.3 Bluetooth Range: 10m Battery Capacity: 220mAh Playtime: Up to 30 hours Case Input: Type-C Product Features: Call Vibration Alerts Stay in Touch Equipped with a high-frequency motor that reaches a maximum speed of 15,000 rpm, Wireless earphones deliver powerful vibrations to notify you of incoming calls. 30-hour Long Playtime Play All Day Enjoy 30 hours of music playback on a single charge. You can listen to your favorite music all day long without worrying about running out of battery. Thumping Bass Power to Amaze You Equipped with 10mm dynamic drivers and the exclusive HavyBass™ algorithm, Bluetooth earbuds offer an extraordinary listening experience with deep bass. Effortless Control with APP Unlock More Surprises It consistently brings you the best sound quality by seamlessly tuning audio on oraimo Sound APP. oraimo also gives audiophiles and music enthusiasts the tools to tailor their exclusive style for their every whim. Dual Device Connection Freely Switch to Another Device Wireless headphones can connect 2 devices at the same time. Never worry about missing the calls from another phone. *Long press the "O" and "+" buttons simultaneously to connect the second device, or activate it via the app. Noise Cancellation in Calls Designed for Clear Voice Wireless Bluetooth earbuds are featured with proprietary noise-canceling algorithm and microphone, which helps reducing surrounding noise and providing clear voice in calls. Low-latency Game Mode Audio and Video Sync in Game Game mode provides fluent experience while playing video or games, helping you capture your best gaming moments. IPX4 Waterproof Not Afraid of Sweat Featured with IPX4 waterproof levels, our wireless headphones neckband Bluetooth serves you anytime not matter you are in gym, working-out, running and other sweaty exercise. Magnetic Earbuds One Click to Get Clutter-free Each earbud has a built-in magnetic mechanism to ensure tangle-free carrying and storage.