• Brand – soundcore (Anker)
• Model Number – A3872
• Type – Open-Ear Earbuds (Ear Hook / Open Comfort)
• Driver Unit – 14 mm Dynamic Driver
• Diaphragm – Composite Diaphragms with Titanium-Coated Domes
• Bass – BassUp Technology
• Calls – 4 Mics + AI Noise Reduction Algorithm
• Water Resistance – IPX7 + SweatGuard
• Bluetooth – 5.3
• Multipoint – Yes (Dual Connections via soundcore app)
• Bluetooth Range – 10 m / 33 ft
• Playtime – 11 h (Earbuds) / 42 h (With Case)
• Fast Charging – 10 mins = 4 h (Playtime)
• Battery Capacity – 85 mAh × 2 (Earbuds) / 750 mAh (Charging Case)
• Charging Time – 1 h (Earbuds) / 2 h (Charging Case)
• Charging Input – 5 V ⎓ 1.2 A
• Charging Output – 5 V ⎓ 0.5 A (0.25 A per port)
• Frequency Response – 20 Hz – 20 kHz
• Impedance – 11 Ω
• Maximum Volume – 89 dB
• Controls – Touch Control
• App – soundcore app (Adjust EQ, Firmware Update, Dual Connections, 3D Surround Sound)