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门铃欢迎光临双向迎宾感应器红外线店铺超市门口语音播报进门提示
bidirectional induction rechargeable: with 700mah lithium battery (3 months for charging)(双向感应充电款：含700mAh锂电池（充电一次用3个月）)
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USD $10.63 | 104802 set available |
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bidirectional induction battery type: battery not included(双向感应电池款：不含电池)
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USD $8.64 | 99308 set available |
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bidirectional induction battery type: including 3 7 th alkaline batteries(双向感应电池款：含3节7号碱性电池)
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USD $9.34 | 104207 set available |
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