Weight and dimensions Product height: 31 mm Product depth: 52 mm Product weight: 60 g Product width: 64.5 mm Efficiency Application: Calls/Music Apple Siri compatibility: Yes Master/Slave Function: Yes Wearing style: In-ear Product type: Headset Product color: White Active noise cancellation: Yes Package contents Charging case: Yes Quantity: 1 Ports and interfaces Bluetooth: Yes Connection method: Wireless Bluetooth version: 5.4 Battery Battery capacity (charging case): 400 mAh Working time (With ANC): 6 h Talk time: 7 h Left earphone battery capacity: 40 mAh Supported battery type: Built-in Right earphone battery capacity: 40 mAh Microphone Microphone type: Built-in microphone Safety warning Warnings Keep away from children. Check the condition of the batteries regularly to prevent leakage. Do not use near sources of heat or fire. Headphones Headphone construction: In-ear