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: NEW Lg Optimus L7 Ii Black Dual SIM 3g 8mp Smartphone P715 Factory Unlocked Best Gift - International Version No Warranty
Product description: GENERAL 2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 3G Network HSDPA 900 / 1900 / 2100 - P715 HSDPA 850 / 1900 / 2100 - P716 SIM Dual SIM Announced 2013, February Status Available. Released 2013, March BODY Dimensions 122.2 x 66.6 x 9.7 mm (4.81 x 2.62 x 0.38 in) Weight 115.5 g (4.06 oz) DISPLAY Type IPS LCD capacitive touchscreen, 16M colors Size 480 x 800 pixels, 4.3 inches (~217 ppi pixel density) Multitouch Yes SOUND Alert types Vibration, MP3 ringtones Loudspeaker Yes 3.5mm jack Yes - Dolby mobile sound enhancement MEMORY Card slot microSD, up to 32 GB Internal 4 GB, 768 MB RAM DATA GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps EDGE Class 12 Speed HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA Bluetooth Yes, v3.0 with A2DP USB Yes, microUSB v2.0 CAMERA Primary 8 MP, 3264 x 2448 pixels, autofocus, LED flash Features Geo-tagging, touch focus, face detection Video Yes, 480p@30fps Secondary Yes, VGA FEATURES OS Android OS, v4.1.2 (Jelly Bean) Chipset Qualcomm MSM8225 Snapdragon
Product feature: NEW LG Optimus L7 II Black Dual SIM 3G 8MP Smartphone P715 ★ Factory Unlocked Fast Shipping Ship All the World, This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.
Product price: $129.99
Product brand: LG
Target attributes: Battery Life
Answer: attribute: battery life
value: None
source: None