Weight and dimensions Product depth: 48 mm Product weight: 45.5 g Product height: 30 mm Product width: 64 mm Efficiency Active noise cancellation: Yes Multi-Device Support: Yes Apple Siri compatibility: Yes Wearing style: In-ear Application: Calls/Music LED display: Yes Product color: White Master/Slave Function: Yes Product type: Headset Package contents Quantity: 1 Charging case: Yes Ports and interfaces Connection method: Wireless Bluetooth version: 5.4 Bluetooth: Yes Battery Supported battery type: Built-in Working time (With ANC): 6 h Right earphone battery capacity: 40 mAh Left earphone battery capacity: 40 mAh Battery capacity (charging case): 400 mAh Talk time: 7 h Microphone Microphone type: Built-in microphone Safety warning Warnings Keep away from children. Do not use near sources of heat or fire. Check the condition of the batteries regularly to prevent leakage. Headphones Headphone construction: In-ear