1.SIM Card Read-write Adapter. 2.Can save 250 sets of data. SIM card read-write adapterUse to backup or restore the phone book from SIM cardsCan save 250 sets of dataUse ROM to store data, data will not lose even though there is no batteryBox size: 64 x 45 x 25mmCarton size: 53 x 34 x 20.5cmCarton size: 53 x 34 x 20.5cm SIM Card Adapter
[China Manufacturers]