Soundcore by Anker A30i Bluetooth 5.4 Fully Wireless Earbuds, Active Noise Cancelling, Multi-Point Connection, Small and Lightweight

Supports Abundant App Functions: You can choose noise cancelling mode or customize equalizer settings on the dedicated app. It also supports new features such as "Gaming Mode" and "Find Earphones"
Lightweight and Compact Design: Each ear has a lightweight design that weighs approximately 0.1 oz (3.7 g) and a compact lipstick case. Great for travel
Built-in Active Noise Cancellation: Built-in microphone in the earphone detects and reduces ambient noise. You can enjoy music clearly even on traffic trains or cafes
Up to 24 hours of playback: Up to 7 hours of music playback when fully charged (up to 4 hours in noise canceling mode) when combined with the charging case (up to 15 hours in noise canceling mode). Playback time is the time of music playback and depends on the volume, contents played and the usage environment
COMPACT BUT POWERFUL BASS: Anker exclusive BassUp technology delivers deep bass. It also supports high-quality audio codec AAC
Package Includes: Main unit, charging case, 3 types of ear tips, USB-C & USB-A cables, Quick Start Guide, Technical Standards Mark certified product (frequency range: 2.40 - 2.48 GHz)

The Soundcore A30i (Model A3958) from the manufacturer's documentation:
Audio & Acoustics
• Driver Size: 6mm composite dynamic drivers.
• Frequency Response: 20 Hz – 20 kHz.
• Impedance: 16 Ω.
• Audio Features: 3D Surround Sound Effect, BassUp Technology, 22 Preset EQs.
• Noise Cancellation: Smart Adaptive Active Noise Cancellation (ANC) up to 46dB depth, Transparency Mode, Normal Mode, and dedicated Wind Noise Reduction.
Connectivity & Controls
• Bluetooth Version: Bluetooth 5.4.
• Wireless Range: Up to 10 meters (approx. 33 feet).
• Multipoint Connection: Yes (Dual Connections support via the Soundcore App).
• Microphones: 4-Microphone array (2 per earbud) integrated with an AI-enhanced call noise reduction algorithm.
• Touch Controls: Customizable tap functions (supports single tap, double tap, triple tap, and 2-second hold).
Power & Battery
• Charging Case Input Power: 5V ⎓ 0.46A.
• Earbud Output Power: 5V ⎓ 0.2A (0.1A per port).
• Case Battery Capacity: 310mAh / 1.147Wh.
• Playtime (ANC Off): Up to 7 hours single charge / 24 hours total with case.
• Playtime (ANC On): Up to 5 hours single charge / 18 hours total with case.
• Earbud Full Charge Time: ~1 hour.
• Case Full Charge Time: ~2 hours via USB-C.
• Fast Charge Support: 10 minutes of charging provides up to 2 hours of playback.
• Wireless Charging: Not supported.
Physical Design & Durability
• Earbud Weight: 3.7g per bud.
• Water/Dust Resistance: IP54 Certified (Sweat, splash, and dust resistant).
• Case Form Factor: Vertical sliding cylindrical "lipstick" style magnetic case.
• In-Box Contents: Earbuds, lipstick charging case, USB-C charging cable, and 3 pairs of silicone ear tips (S/M/L)