Weight and dimensions Charging case weight: 56.4 g Left earphone weight: 8.7 g Product depth: 47.8 mm Product weight: 174 g Product height: 17.1 mm Product width: 43.4 mm Right earphone weight: 8.7 g Efficiency Headset type: Stereo Application: Calls/Music/Sports/Everyday Product type: Headset Wearing style: On-ear Product color: Black IP protection class: IP54 Packaging data Package depth: 105 mm Weight with packaging: 210 g Package height: 50 mm Package width: 105 mm Ports and interfaces Connection method: Wireless Bluetooth profiles A2DP HFP AVRCP Wireless router range: 10 m Bluetooth: Yes Bluetooth version: 5.2 Battery Battery charging time (charging case): 1 h Input voltage (charging case): 5 V Battery capacity (charging case): 600 mAh Right earphone battery capacity: 40 mAh Battery capacity: 40 mAh Left earphone battery capacity: 40 mAh Fast charging: Yes Logistics data Product code: 8518300090 Microphone Microphone type: Built-in microphone Microphone sensitivity: -38 dB Safety warning Warnings Do not use near sources of heat or fire. Check the condition of the batteries regularly to prevent leakage. Keep away from children. Headphones Headphone construction: In-ear Frequency response: 50 - 16000 Hz Headphone sensitivity: 96.2 dB