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We are professional battery supplier, We support global distribution in America, Asia, Europe, the Middle East and Oceania, especially for the United States and Canada .
【Compatible models】:Avaya 3700 EX, DECT 3740, DECT 3749
【Battery Parameters】Specification:Volts:3.7 Type:Li-ion Capacity:1100mAh / 4.07Wh
【Battery Parameters】Specification:Dimension:73.60 x 43.50 x 11.00mm GrossWeight:59
【Customer Service】: Please contact us if there is any problem with our product, we promise you a satisfaction resolution in 24 hours.