• FEATURES Signal transmission Wireless Headset type Over Ear Compatible Universal Product Type Bluetooth Over Ear Headphone Frequency (Hz) 20 Hz - 20 kHz Sensitivity 102 dB Rated Impedance 30 No Noise cancellation No Volume Adjustment Yes Headset function No Bluetooth Version 5.3 Connections Bluetooth Bluetooth Yes Mute Mode Yes Speaker/ headphone switching No Dolby Surround Yes Microphone Yes Water splash resistant No Color (by Manufacturer) Black Weight (by Manufacturer) 157 g Box Contents Tune 527bt Headset, Charging Cable Weight 157 Width 22 Height 22 Depth 7 Color (basic) Black Packing Size 22 cm / 22 cm / 7 cm Manufacturer Warranty 2 Years Official Distributor Guaranteed Made in China Packing Width 22 Packing Height 22 Packing Depth 7 Circle Dimensions 80 cm Packed Weight 157