The Anker Soundcore K20i are semi-in-ear wireless earbuds featuring a 13mm dynamic driver, Bluetooth 5.3, and dual microphones with AI-enhanced noise reduction for calls. They have an IPX5 water-resistance rating and offer up to 36 hours of total playtime with the charging case. The Soundcore app allows for audio customization through 22 EQ presets, and the earbuds support touch controls and a gaming mode for lower latency. 

• Driver: 13mm dynamic driver
• Frequency Response: 20Hz – 20kHz
• Bass: BassUp technology to enhance bass
• Customization: Soundcore app support with 22 customizable EQ presets 

• Total Playtime: Up to 36 hours with the charging case
• Earbud Playtime: Up to 6 hours on a single charge
• Quick Charge: 10-minute charge provides up to 2 hours of playtime 

• Bluetooth: Version 5.3
• Controls: Touch controls
• Gaming Mode: Yes, for reduced latency 

• Design: Semi-in-ear ergonomic design, lightweight at 3.3g per earbud
• Water Resistance: IPX5 rating
• Microphones: Dual mics with AI-enhanced noise cancellation (ENC)