2 earbuds 180° Rotating Design: Allows you to easily switch between the right and left ear and adjust to your comfortable angle. Extended Wearing Comfort: Non-in-ear (open) design, very comfortable for long use without causing pain, and provides continuous music playback time of up to 16-20 hours. Stable Connection and Fast Response: Uses the latest Bluetooth 5.4 wireless chip to ensure a strong connection and reliable signal transmission. Lightweight and Water-Resistant: Features an IPX5 water-resistance rating, making them resistant to sweat and light rain splashes, ideal for sports activities. 📊 Product Technical Specifications: Brand: VAORLO Product Name: Open Wireless Headset Model: YS-01 Bluetooth Version: V5.4 Dynamic Speaker (Vocalism Principle): 14.2mm dynamic with 32Ω impedance Music Playback Time: About 16 hours (depends on volume level) Call Time: About 88 hours Standby Time: About 600 hours Charging Time: About 1.5 to 2 hours Transmission Distance: 10 meters (unobstructed) Earbud Battery Capacity: 150 mAh Charging Port: Type-C 📦 Package Contents: 1 Open Wireless Headset (YS-01) 1 Type-C Charging Cable 1 User Manual Single earbud: 50 SAR