• Bluetooth Version: 5.1/5.3
• Headphone Battery Bapacity: 50mAh
• Charger Capacity: 2000mAh
• Connection Distance: 10-15m / 393.70 "-590.55" (approx.)
• Headphone Charging Time: 1-2 hours
• Headphone Playback Time: about 4 hours
