Free Ship Hi-Link mini size low consumption BLE5.1 Bluetooth module Faster distance HLK-B40 Master and slave TTL transmission

Free Ship Hi-Link mini size low consumption BLE5.1 Bluetooth module Faster distance HLK-B40 Master and slave TTL transmission
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sku: 1005003022907513
$4.56-22%
$3.55
Shipping from: China
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