OnePlus Buds 4 Gray

Battery type: Built-in battery | Connectivity technology: Wireless | Battery technology: Lithium-Ion (Li-Ion) | AC adapter included: No | Width: 31 mm | Bluetooth: Yes | Quick start guide: Yes | International Protection (IP) code: IP55 | Weight: 4.7 g | Product colour: Grey | Cables included: USB Type-C | Warnings: Regularly check the condition of the batteries to prevent leaks. | Warnings: Keep away from children. | USB Type-C charging port: Yes | Warnings: Do not use near sources of heat or flame. | Battery recharge time: 0.83 h | Charging case connector type: USB Type-C | Charging case weight: 40 g | Microphone type: Built-in | Charging case: Yes | Headphone frequency: 15 - 40000 Hz | Height: 24.2 mm | Ear coupling: Intraaural | Product type: Headset | Recommended usage: Calls/Music | Microphone sensitivity: -38 dB | Bluetooth version: 5.4 | Noise canceling type: Active | Battery operated: Yes | Headset type: Binaural | Maximum input power: 10 mW | Depth: 20.6 mm | Intraaural headphones type: Earbuds | Battery capacity: 62 mAh | USB Power Delivery (USB PD): Yes | Bluetooth profiles: A2DP, AVRCP, HFP | Wearing style: In-ear | Warranty card: Yes | Battery recharge time (charging case): 1.3 h | Continuous audio playback time (ANC on): 6 h | Battery capacity (charging case): 530 mAh | Continuous audio playback time (charging case/ANC on): 24 h | Continuous audio playback time (charging case/ANC off): 45 h | Eartips material: Silicone | Noise canceling: Yes | Continuous audio playback time (ANC off): 11 h