• Driver size: 12 mm/ 4.7” Dynamic Driver • Power supply: 5V 1A • Earbud: 5.2 g per pc (10.4 g combined)/ 0.015 lbs per pc (0.023 lbs combined) • Charging case: 41.6 g/ 0.0917 lbs • Earbud battery type: Lithium-ion polymer (54 mAh/ 3.85 V) • Charging case battery type: Lithium-ion polymer (690 mAh/3.85 V) • Charging time: 2 hrs from empty • Music playtime with BT on and ANC off: Up to 8 hrs • Music playtime with BT on and ANC on: Up to 6 hrs • Music playtime with BT on and Adaptive ANC on: Up to 5 hrs • Talk time with ANC off: Up to 4 hrs • Talk time with ANC on: Up to 4 hrs • Frequency response: 20 Hz - 20 kHz • Impedance: 32 ohm • Sensitivity: 101 dB SPL@1 kHz • Bluetooth transmitter power: • Maximum SPL: 93 dB • Microphone sensitivity: -38 dBV/Pa@1 kHz • Bluetooth version: 5.3 • Bluetooth profile version: A2DP 1.3.2, AVRCP 1.6.2, HFP 1.7.2 • Bluetooth transmitter frequency range: 2.4 GHz – 2.4835 GHz • Bluetooth transmitter modulation: GFSK, π/4-DQPSK, 8DPSK • Maximum operation temperature: 45 °C • IPX Rating: IP54 water and dust resistant