Custom Promotional Headphone, Earphone, Ear muff Wholesale
Frequency Range:20H--20KHZ Maximum Power input:60mw Rated Power:20MW Speaker:40mm Impedance:32ohm Microphone Uint:6x 5-58db±3db Plugging:3.5mm Stereo Length of cable:2.0m Packing: 1pc/blister card, 60pcs/ctn, Carton size: 60 x 38 x 53 cm
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