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Barcode reader
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=== Wireless networking === Some modern handheld barcode readers can be operated in [[wireless network]]s according to [[IEEE 802.11g]] ([[WLAN]]) or [[IEEE 802.15.1]] ([[Bluetooth]]). Some barcode readers also support [[radio frequencies]] viz. 433 MHz or 910 MHz. Readers without external power sources require their [[Battery (electricity)|batteries]] be recharged occasionally, which may make them unsuitable for some uses.
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