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 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 Adaptive ANC
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 hrs 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™