sweetty K3 Wireless Headset

Specification: Item: Business Headset Model: K3 Material: ABS Color: Black BT: V 5.0 Connection Distance: 10m/32.81ft Sensitivity: -42±1dB Speaker Diameter: 13mm Speaker Impedance: 32Ω at 1KHz 1mW Rated Power: 3mW (Maximum Power 5mW) Frequency Response: 20Hz-20KHz Battery Type: Polymer Battery Charging Box Battery: 500mAh Headphone Battery: 90mAh Charge Time: 1-2 hours Headset Music time: 10 hours Headset Standby time: 40 hours Frequency Response Range: 20Hz - 20KHz Package Size: 13*9.5*3cm / 5.12*3.74*1.18in Package Weight: 155g / 5.47oz Package List: 1 * Business Headset 1 * Charging Box 1 * USB Cable 2 * Earplugs 1 * User Manual