· Battery:5B external battery (600mah)
· Output: RMS 3W*2
· Frequency: 50Hz-18KHz
· SNR: ≥85db
· Response sensltivity: 500mv
· Impedance: 4HM(Ω)
· input: USB DC 5V
· Speaker unit: 3" 4Ω 3W *2
· Case material: Aluminum
· Bluetooth solution/Edition: 2.1
· Weight: 324g
· Size: 11.1x11.1x9.5cm
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