【All-Day Comfort】High-elasticity skin-friendly material with embedded flexible titanium alloy wire self-adjusts to fit ears. Weighing only 4.9g, these earbuds are suitable for all-day wear 【Innovative Small L-Bridge Design】Patented structure provides directional sound transmission, reduced sound leakage, and clearer audio. Ensures a secure fit and prevents falling 【Intelligent Channel Detection】Wear left and right earbuds interchangeably. Spatial audio automatically calibrates based on the wearing position 【Full-Area Smart Touch Control】Easy control from any part of the earbud, eliminating the need to find a specific touch area and preventing accidental touches during movement 【High-Quality Audio】Ф13mm speaker with composite diaphragm delivers full low frequencies and transparent mid-high frequencies. Custom 10mm large magnetic circuit ensures high sensitivity and authentic sound reproduction 【Customization Options】App allows activation of bass boost mode, low-latency mode, EQ adjustments, and custom controls 【Dual Device Smart Connection】Simultaneously connect to two Bluetooth-compatible devices for efficient multitasking Specifications: Bluetooth-compatible Version: 5.4 Communication Range: 10 meters Playback Time: 5-6 hours (earbuds), 25 hours (with charging case) Battery Capacity: 40mAh (earbuds), 400mAh (charging case) Charging Time: Approximately 2 hours Charging Input: 5V?1A Charging Port: Type-C Speaker Size: Ф13mm Audio Codecs: AAC, SBC Water Resistance: IPX4 Material: ABS+PC Weight: 4.9g (earbuds), 36.2g (charging case)