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Making Life Easier with iRobot Roomba 870 Robotic Vacuum
Amazon.com: NASTIMA 14.8V 5000mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 960/895/890/860/695/680/690/675/640/614, Replace The Original 1800mAh Lithium ion Battery : Home & Kitchen
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User manual iRobot Roomba 870 (English - 36 pages)
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Making Life Easier with iRobot Roomba 870 Robotic Vacuum