Advanced Connectivity and Sound Quality: Experience seamless audio with Bluetooth 5.4 technology, ensuring stable and quick pairing with less than 10m range. The earbuds feature a balanced armature vocalism principle and support AAC and sbc codecs, delivering crisp, clear sound with a total harmonic distortion of 15%. Durable and User-Friendly Design: Crafted from robust ABS plastic, these lightweight earbuds (160g) are designed for comfort and durability. They come with a semi-open earcups type and are equipped with intuitive smart touch controls for easy operation, including volume adjustment. Long-Lasting Battery with Portable Charging: Enjoy up to 6 hours of uninterrupted audio playback with a dual battery system (35+600mAh). The earbuds come with a convenient charging case and Type-C connectivity, making it easy to charge on the go. Waterproof and Versatile Use: Certified with CE, FCC, RoHS, and KC, these earbuds are waterproof and suitable for a variety of activities, including sports, gaming, and outdoor adventures. They also feature a built-in microphone for hands-free calls and support a memory card for additional storage. Innovative Features for Enhanced Experience: Equipped with ENC noise cancellation technology for clear sound in noisy environments and dual connection capability. The earbuds also support TF card functionality and come with an app for easy control and location tracking. Specifications: Speaker Diameter :13mm (1309) 32 Ωsilicone titanium film (measurement curve) Chips:Headphones JL7003D4(one tow two),ENC Dual Microphone Noise Canceling CompartmentJL7013A6 Headset Battery Capacity:Headset battery 451012/35mAh Headset Battery Capacity:Compartment battery 503040/600 mAh effective distance:Accessibility≥ 10-15 meters listening time:5 to 6 hours (70