Job Link Transmitter with Steel Clip, Range:1 to 100Ft(Fieldpiece), Range:1 to 30Ft(Ipad/Iphone)Rechargeable Battery:3.7 VDC, 48 Hour Battery Life,Mini USB Charging, With This Transmitter and The Job Link App You Can Start Running Your Jobs Through Your IOS Mobile Device, Features:Live Measurements,Trusted Diagnostics,Inspection Checklist,Cloud Storage,Report Emailing, Compatibility:Fieldpiece Wireless Tools:SMAN4,SMAN440,SMAN460,SDP2.Mobile Internet Devices:Iphone 4S or Later,Ipad Mini,Ipad 3rd Generation or Later,Ipod Touch 5th Gen or Later, Weightg:5oz In Mfg. Box, Made In China