Features:

• Ergonomic Design
• Sennheiser Signature Sound
• Hybrid ANC
• 28 hrs battery life
• Ultra-fast charging

Technical specifications:

• Wearing style: True wireless stereo earphones
• Ear Coupling: Ear canal
• Connectivity:
  
  • Bluetooth 5.3 compliant, class 1, 10 mW (max)
  • Bluetooth Classic and LE Audio supported
• Transmission frequency / modulation:
  
  • 2,402 MHz to 2,480 MHz
  • GFSK, π/4 DQPSK / 8DPSK
• Supported Profiles: A2DP, AVRCP, HFP, TMAP, PBP
• Supported codecs: SBC, AAC, aptX™, LC3
• Speaker:
  • Speaker principle: Dynamic
  • Speaker type/size: TrueResponse™ dynamic, 7mm diameter
  • Speaker frequency range: 5 Hz to 21 kHz
  • Speaker sensitivity: 107 dB SPL (1 kHz / 1 mW)
  • Speaker THD: <0.08% (1 kHz / 94 dB)
  • Speaker impedance: Not applicable (active BT headphones)
• Active Noise Cancellation: Hybrid ANC
• Mic:
  • Mic principle: MEMS
  • Mic frequency range: 100 Hz to 10 kHz
  • Mic pick-up pattern: 2 mics per earbud, beamforming for noise reduction
• Battery lifespan:
  
  • Up to 8 hrs music playtime with earbuds (ANC off)
  • Up to 6 hrs music playtime with earbuds (ANC on)
  • Up to 28 hrs overall music playtime with charging case (Test condition: iPhone, mid volume level 85dB)
• Charging time:
  
  • Approx. 1.5 hrs for fully charged
  • After 10 min charging, 1 hr music playtime
  • Remark: Ambient temperatures <15°C or >30°C and Qi wireless charging leads to extended charging times
• Battery type:
  
  • Built-in Lithium-Ion rechargeable batteries
  • Left/right earbud: 55 mAh
  • Charging case: 400-420 mAh
• Power Supply:
  
  • 5 V⎓, 1000 mA max
  • USB charging via USB-C socket at charging case
  • Qi Wireless charging
• Magnetic strength field:
  
  • Earbuds: 53.7 mT
  • Charging case: 101.7 mT
• Weather resistance: IP54, splash resistant (earbuds only)
• Product weight:
  
  • 52 g (both earbuds and charging case)
  • 5.5 g (single earbud)
  • 41 g (charging case)
• Product dimension: 49.45 x 51.72 x 28.95 mm (earbuds and charging case)
• Operating condition:
  
  • Operating Temp: 0 to +40°C
  • Charging Temp: 5 to +35°C
  • Rel. humidity 10 to 80%, non-condensing
• Storage condition:
  
  • Temp: –20 to +60°C
  • Rel. humidity 10 to 90%
• App support: Sennheiser Smart Control app for iOS™ and Android™