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Size: 22.5 x 21.5cm/8.9 x 8.5inch
Bluetooth: Bluetooth 4.2.Frequency Range: 20-20000HZ.Sensitivity: 95dB.Impedance: 32Ω.Speaker Size: 32mm.Transmission Range: 10m.Battery Capacity: 180mA Lithium Battery
Knitted material, fashion and keep warm with answer the phone in winter.Compatibility stretchable acrylic material to fit all sizes and shapes.
Binaural stereo with its own microphone, can listen to music anytime and anywhere.Great performance intuitive control buttons and high density built-in rechargeable lithium battery to manage 6 hours of hands-free calling.
Package Content: 1 x Bluetooth Knit Hat, 1 x USB Cable, 1 x Manual
Sliwei HD Stereo Bluetooth 4.2 Wireless Smart Beanie Headset Musical Knit Headphone Speaker Hat Speakerphone Cap Built-in Mic - B07KHSP26B