Specification:
Speaker Sensitivity:  58dB±3dB
Speaker Frequency Response: 5-20KHz
Cable length:  1.8m
Speaker: 40mm
lmpedance: 32Ω
Maximum power:  3500mW
Connectors:  3.5mm

Why Jumboaudio?
1)Top 3 speaker box leading manufacturer in China since 2007,with long-term cooperation of word's leading importers e.g. Walmart, Coppel, ect.
2)3 manufacturing bases Covering 40, 000 square meters and 300~500 workers, with annual production capacity of 1, 200, 000 PCS. 
3)Strong design ability with more than 20 people in R&D team, being familar with ODM developing. 
4)More than 30, 000 retail shops & chain stores,over 10 million users. 
5) ISO 9001, Wal-mart, FAMA, BSCI ,approved.
6)Testing passed NOM, UL, ETL, CB, CE, FCC, IRAM, SAA, Rohs, D&B safty angency.