OnePlus Buds 4 Green

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