OnePlus Buds 4 Gray

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