Price negotiations are welcome, so please comment if you're interested. Innovative Folding Design: Adopts a double-folding structure, making it easy to store and carry without taking up space. Advanced Bluetooth Connectivity: Equipped with Bluetooth 6.0 for fast and stable connections, supporting simultaneous connection to dual devices, suitable for low-latency gaming and audiovisual use. Excellent Sound Quality: Uses 14.2mm composite biological wool fiber diaphragm speakers and features an optimized virtual bass algorithm. The high frequencies are clear and analytical, while the bass is powerful, delivering a rich and clear sound. Comfortable and Stable Fit: The three-point support soft silicone structure fits securely in the ear, is lightweight, and won't easily fall out during intense exercise, allowing for comfortable wear for extended periods. Long Battery Life: The earbuds can be used for 7-10 hours on a single charge, and with the charging case, the total battery life exceeds 30 hours. Waterproof and Sweat-Resistant: Features IPX5 waterproof rating, effectively protecting against sweat and rain during sports. Convenient Features: Supports touch controls for easy operation, and call noise reduction for clear communication. Product Model: AC530 Transmission Distance: 10m Charging Case Battery: 300mAh Call Time: Approximately 6-8 hours Charging Case Charging Time: Approximately 1.5 hours Product Colors: Black, White Bluetooth Version: V6.0 Driver Size: 14.2mm Earbud Battery: 50mAh Music Time: Approximately 7-12 hours Earbud Charging Time: 1 hour Waterproof Rating: IPX5