Sennheiser Cx-True-Wireless-White Headphones With Bluetooth Microphone

Features: <ul> <li>Style: True Wireless stereo earbuds</li> <li>Ear coupling: Ear canal, closed-back</li> <li>Connectivity: Bluetooth 5.2, class 1, BLE compatible</li> <li>Supported profiles: A2DP, AVRCP, HFP</li> <li>Supported codecs: SBC, AAC, aptX™</li> <li>Speaker: Dynamic 7 mm diameter</li> <li>Speaker frequency range: 5 Hz - 21 kHz</li> <li>Speaker sensitivity: 110 dB SPL (1 kHz / 0 dBFS)</li> <li>Speaker THD: &lt;0.08% (1 kHz / 94 dB)</li> <li>Speaker impedance: 16 Ohm</li> <li>Microphone principle: MEMS</li> <li>Microphone frequency range: 100 Hz - 10 kHz</li> <li>Microphone system: 2 beamforming arrays (4 total microphones) for clear voice recognition</li> <li>Battery life: 9 hours per charge + 27 hours with charging case</li> <li>Charging time: 1.5 hours full charge - 15 minutes for 1 hour playback</li> <li>Battery type: Built-in rechargeable lithium-ion batteries (60 mAh per earbud, 400 mAh case)</li> <li>Charging: USB-C on charging case (5V, 600 mA max)</li> </ul>