Rechargeable Calculator Wholesale ,China Custom-made Rechargeable Calculator, Customized Logoed Printed , China Rechargeable Calculator

Item No:kathyC20050319921
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Description: This promotional 8 digit display calculator uses Faraday’s Principle of Electromagnetic Energy to operate. A magnet moving by a copper wire produces an electric current that powers the calculator. Shake it left to right non- stop 20-25 times, and enough electricity is generated to operate for 10 minutes. When the digits on the LCD screen dim, just shake it a few more times to recharge - their calculations won£§t be lost during recharging. Designed with a rubber grip, and a clear viewing window. Color: Gray w/ Red, Gray w/ Blue and Gray w/ Silver. Size: 3-1/4" w x 5-1/4" h x 3/4" d Packaging: Bulk packed. 23 lbs. / 80 pcs.