• 【Digital Noise Reduction Chip】Advanced digital chip technology divides sound into 4 frequency bands with intelligent adjustment, effectively filtering environmental noise for clear and comprehensible hearing.

• 【20-Hour Ultra-Long Battery Life】Single charge provides 20 hours of use, combined with charging case delivers total 100 hours of power, eliminating frequent charging concerns for all-day listening needs.

• 【HD Digital Power Display】Charging case features high-definition LED digital display screen showing real-time battery levels for left/right earpieces and charging case, providing clear power status at a glance.

• 【Three Scene Mode Settings】Supports indoor, outdoor, and general hearing modes with free switching, automatically optimizing sound quality for different environments from family gatherings to outdoor walks.

• 【Ergonomic Invisible Design】Weighing only 3.4g with ear canal contour design for invisible and comfortable wear, includes multiple sizes of silicone ear tips for secure fit without falling off.

• 【One-Click Operation Voice Prompt】Designed specifically for elderly users with simple operation logic - long press/short press to adjust volume and modes with clear voice announcements for zero learning curve.

Specifications:

• Chip Type: Digital Chip
• Maximum OSPL90: ≤115dB±5dB
• High Frequency Average OSPL90: ≤110dB±5dB
• Full Gain: ≤30dB±5dB
• Frequency Response Range: 400Hz-5000Hz (not narrower than)
• Total Harmonic Distortion: 7%±3%
• Equivalent Input Noise Level: ≤28dB±5dB
• Main Unit Battery: 7840/15mAh
• Charging Case Battery: 501835B/300mAh
• Single Use Duration: 20 hours
• Total Battery Life: 100 hours
• Charging Time: 1 hour
• Charging Interface: Type-C
• Standby Storage Time: 12 months
• Quick Charge: 5 minutes for 2 hours use
• Earpiece Material: Silicone
• Volume Levels: 4 levels
• Mode Options: 3 modes (Indoor/Outdoor/General)