Hi-Res Audio with LHDCTM (Low-latency High-definition Audio Codec) Knowles Balanced Armature driver + dynamic driver + electronic crossover technology for natural and balanced sound Hybrid ANC technology reduces noise by up to 42dB Three-microphone noise cancellation ensures clear phone calls 6+18 hours of continuous playback Quick charge of ten minutes for one hour listening 80ms low-latency game mode supported IP54-rated dust and water resistance for outdoor scenarios Various sizes of antibiotic ear tips for your comfort and health Personalize your experience with the EDIFIER CONNECT APBluetooth version V5.0 Audio codecs LHDC, AAC, SBC Driver unit balanced armature driver + dynamic driver Playback time ANC on: about 5 hours (earbuds) + 15 hours (charging case) ANC off: about 6 hours (earbuds) + 18 hours (charging case) Charging time about 1 hour (earbuds)/about 1 hour (charging case) Battery capacity 40mAh (earbuds)/500mAh (charging case) Frequency response 20Hz-40kHz Sensitivity 92±3dBSPL Impedance 24Ω Charging port USB Type-C