Brand Dyson Colour Ceramic Cinnabar Ear placement On Ear Form factor On Ear Noise control Active Noise Cancellation About this item Bluetooth v5.0, range: Up to 9m (30 ft) Dimensions (HxL): 201 x 261 mm Weight: 0.451 kg Aluminium Body, Caps (CNC ceramic or anodised aluminium), Microfibre Cushions Up to 55h Battery life, Battery charging time in 30 mins for 9 hours, up to 2.5 hours Quick 10-minute charge, Battery charge via USB-C 0.1% at 94dB 1kHz Distortion, Up to 40dB Total Attenuation, 6Hz - 21kHz Frequency Response