OnePlus Buds 4 Gray

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