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KF SENIOR HD-90 Headphones
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商品描述
Battery:650mAH Bluetooth Version: 5.3 Charging time: 2~3 hours Speaker size:中40mm Speaker impedance:4Ω±15% Input power: DC 5V(300mA) Bluetooth Distance:10 meters(33 feet) Frequency response:180HZ-16KHZ Speaker Signal to noise ratio: >85dB Headphone Signal to noise ratio: >90dB Speaker Total Harmonic Distortion: Less than 5% Headphone Total Harmonic Distortion: Less than 3% Playing time: Headphone mode is about 18 hours speaker mode is about 4 Carton quantity: 28 Carton size: 50*47*64 Carton weight: 21.5KG Model: HD-90
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