• FEATURES Signal transmission Wireless Headset type In-Ear Product Type Bluetooth In-Ear Headset Frequency (Hz) 20 Hz 20 Khz Sensitivity 102 Rated Impedance 36 No No Noise Cancelling Volume Adjustment Yes Headset function Yes Bluetooth Version 5.4 Links Bluetooth Bluetooth Yes Special Attributes Call Control Mute Mode Yes Dolby Surround No Microphone Yes NFC (Near Field) Support No Water splash resistant Yes Maximum battery life 40 Hours Charging Time 60 Min Cable Length 35 Colors (According to Manufacturer) White Box Content Product and Charging Cable Weight 15 Width 3 Height 8 Depth 2 Packing Size 5cm /10cm /5mm Manufacturer's Warranty 2 Years Official Manufacturer's Guaranteed Place of Manufacture China Packing Width 5 Packing Height 10 Packing Depth 5 Perimeter 21cm Packing Weight 25