OnePlus Buds 4 Gray

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