Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Uniden EXP 971 900 MHz Analog Cordless Phone (Black)
Product description: Uniden 900MHz in BLACK - 900MHz Cordless - 10# Speed dial memory- Redial- 20 Channel autoscan system- Handset locator- Desk or wall mountable- One touch RocketDial- Earpiece volume control- Low battery indicator- Hearing aid compatible- Pulse/tone dialing- Flash button - CharcoalPackage Includes:- Cordless Phone- AC Adapter- Rechargeable battery- Telephone Cord- ManualBATTERY: BATT-904
Product feature: 900 MHz analog signal, Compact base footprint, 10 number memory dialing, one touch RocketDial, Headset and hearing aid compatible, Page/handset locator
Product brand: Uniden
Target attributes: Connectivity
Answer: attribute: connectivity
value: cordless
source: product description
attribute: connectivity
value: cordless
source: product title