NIZHI SDY001 Bluetooth Speaker Features: 1.Support: Bluetooth, TF card, USB, FM Radio, Line in & Line out, earphone. 2.High sensitivity FM radio with external antenna(audio cable). 3.Battery supply can support uninterrupted playing time: 3-8hours. 4.Support: MP3/WAV format music. 5.Super Heavy bass effect music sound quality, and also have dynamic Stereophony effect when we take speaker on table. we have technical patent on this speaker. 6.We Hand-free calling function (with MIC). Specification: Battery: 450mAh internal rechargeable batteries. Speaker: 3W*1, 4Ω, and 5V Supply . Output power: 3W*1. Rated Impedance:4Ω. Supply voltage: 5V -Mini USB port. Frequency response: 80Hz-20KHz. SNR: ≥80db. Double magnetic trumpet: 16 core*1. Distortion: 0.3%. Speaker size: 60mm (High)x64.6 (diameter)mm.
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