1. Comfort & Durability

• Comfort Upgrade: Features an integrated C - bridge design for a bare - ear - likecomfortable fit.
• Scientific Pressure Dispersion: Multi - curvature air - arc surface design enhances wearing comfort.
• Smart Memory Fit: 0.5mm memory titanium wire, passing 10,000 + bending tests for a secure, adaptive fit.
• Rugged Design: Undergoes harsh environment and salt - fog tests for durability.

2. Call & AI Performance

• Call Upgrade: Equipped with 4 Mics + 2 bone - conduction mics for crystal - clear calls.
• AI Upgrade: Built - in smart AI assistant supports voice recording transcription, dialogue translation, and simultaneous interpretation.

3. Audio Quality

• Supports LDAC high - definition audio decoding​ and has Hi - Res Gold Label lossless sound certification​ for premium audio.
• Exclusive EQ: Customize your listening habits with personalized EQ settings.

4. Connectivity & Control

• Bluetooth 6.1: Ensures stable connection and lower latency.
• Dual - Device Connection: Seamlessly switch between two devices.
• Full - Area Touch Control: Anti - misoperation design with adjustable sensitivity.

5. Waterproof & Battery

• IP56 Waterproof: Resists sweat and rain, perfect for workouts.
• Battery Life: Earbud (single charge): ~10 hours; With charging case: ~46 hours (at 30% AAC).
• Charging: Charging case (600mAh, 3.7V) charges via USB - C, taking ~1.5 hours. Earbud battery: 60mAh (3.85V).

6. Product Parameters

• Brand: UGREEN
• Model: WS223
• Bluetooth Version: 6.1
• Bluetooth Range: Up to 10m (unobstructed)
• Audio Codecs: HFP/AVRCP/A2DP/BLE/SPP
• Charging Port: USB - C
• Packaging Dimensions: 100×150×45mm
• Net Weight: 60g
• Gross Weight (with packaging): 200g
• Warranty: 1 year
• Packaging: Fashionable color box