- Sennheiser標誌性聲音
- 自我調整降噪
- 高品質語音拾取
- IPX4級防水功能
- 理想貼合
- 最長可達28小時的使用時長
- 無線充電
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Article number (SKU) : 509180 (black), 700074 (graphite), 509181 (white)Wearing style : true wireless stereo earphonesEar coupling : ear canalFrequency response (speaker) : 5 Hz to 21 kHzTransducer principle : dynamic, closed-backTransducer size : 7 mm, TrueResponse™Sound pressure level (SPL) : 107 dB SPL (1 kHz / 1 mW)Total harmonic distortion (THD) : <0.08% (1 kHz / 94 dB SPL)Frequency response (microphone) : 100 Hz to 10 kHzMicrophone principle : MEMSMicrophone pick-up pattern : 3 mics per earbud, beamforming for noise reductionBattery supply : built-in Lithium-Ion rechargeable batteriesBattery supply (earbuds) : 77 mAhBattery supply (charging case) : 850-950 mAhCharging port : USB charging via USB-C socket of the charging caseOperating time (earbuds) : 7 hrsOperating time (charging case) : 28 hrsCharging time : approx. 1.5 hrs for full charge, after 10 min charging 1 hrs music playtimeBluetooth version : Bluetooth 5.2 compliant, class 1, 10 mW (max)Bluetooth profiles : A2DP, AVRCP, HFPBluetooth Audio Codec : SBC, AAC, aptX™, aptX adaptive™Bluetooth output power : 10 mW (max)主動降噪 : Hybrid Adaptive ANCIPX rating : IPX4, splash resistant (earbuds only)Weight (earbuds) : 5.8 gWeight (charging case) : 66.4 gTemperature range (operation) : 0 to +45°CRelative humidity (operation) : 10 to 80%, non-condensingTransmission frequency : 2,402 MHz to 2,480 MHz; GFSK, π/4 DQPSK / 8DPSK