Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Panasonic KXTC1401 900 MHz Big Button Cordless Phone (White)
Product description: 900 MHz phone, spare battery charger built in to base, handset volume control, low battery indicator, 10 number memory, 21 day standby battery life, 30 channel auto scanning, hanset locator beeper, wall mountable, sound charger + noise reduction system, Extra-clear sound, long battery life, 900 MHz operation, and space- saving dimensions combine to make the Panasonic KX-TC1401 a convenient and easy- to-use cordless phone for any home or office., Panasonic's Sound Charger Plus technology filters out background noise for an exceptionally clear signal throughout the operating range of this 900 MHz cordless phone. We tested the KX- TC1401's performance and found the signal consistently clear up to a distance of about 75 feet from the base, after which it faded. The battery life is also excellent, with up to 21 days of standby time or eight hours of talk time, following the phone's initial 15-hour battery charge., With its space-saving dimensions and light weight, the KX-TC1401 easily fits onto any desktop or wall space and is portable. The location of all the phone's command and setting buttons in the handset, including the ringer volume control, is also convenient. In addition, with the quick touch of a button on the handset, you can increase or decrease the handset volume while talking., We think the Panasonic KX-TC1401 is an economical solution for anyone who wants quality 900 MHz cordless performance. --Bryan Taulbee, Pros: Extra-clear signal for a 900 MHz model All functions and settings located in the handset Space-saving design for wall or desktop, Cons: No out-of-range warning indicator
Product feature: 900 MHz analog operation, Sound Charger Plus noise-reduction filter, Up to 21-day standby battery life; 8 hours talk time, 10-station memory dialing, 30-channel auto scanning
Product brand: Panasonic
Target attributes: Connectivity
Answer: attribute: connectivity
value: cordless
source: product description
attribute: connectivity
value: cordless
source: product title