6
— Check digit (confirms the number is well-formed)
UPC-A✓ Valid check digit
Description
2.4Ghz Low Power Consumption Ble4.0 Module (Not Include Antenna) 16*16Mm - The Modules Use Nrf51822 From Nordic As The Controller Chips. 2.4 Ghz Transceiver. Tx Power -20 To +4 Dbm In 4 Db Steps.