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: UMI TOUCH 3GB+16GB, LinPou 4G Metal Unibody Front Fingerprint 2.5D LTPS FHD 5.5 inch Android 6.0 Smart Phone MT6753 Octa Core 1.3GHz (Silver)
Product description: Specification: General Model UMI TOUCH Design Bar Shell Material Metal SIM Quantity Dual SIM SIM Types Micro SIM Card CPU MT6753 CPU Processor Octa Core , 1.3GHz OS System Android 6.0 RAM 3GB ROM 16GB External Memory TF card up to 64GB (not include) Sensor: G-sensor, Light sensor, Proximity sensor, Acceleration sensor, Fingerprint sensor Support Language: English, French, German, Italian, Japanese, Korean, Russian, Spanish, Simple Chinese, Traditional Chinese Additional Features OTG Network Type WCDMA, GSM, FDD-LTE Band (2G): GSM 850/900/1800/1900MHz Band (3G): WCDMA 900/2100MHz Band (4G): FDD-LTE 800/1800/2600MHz WIFI 802.11 a/b/g/n, 2.4GHz/5GHz GPS Yes Bluetooth Yes, V4.1 Display Screen Size 5.5 inch Screen Type LCD Resolution 1920 x 1080 pixels Camera Camera Quantity Dual Front Camera 5.0MP Back Camera 13.0MP Video recording Yes Media Format Audio MP3, WAV, AMR Video 3GP, MPEG-4 Connectivity Ports 2 x Micro SIM card slots 1 x TF card slot 1 x Micro USB 1 x 3.5mm earphone port Battery Battery Capacity 4000mAh Dimensions & Weight Size 154.5*76*8.5mm Weight 190g Package Include 1 x Phone 1 x Power Adapter 1 x User Manual 1 x USB Cable
Product feature: Band (2G): GSM 850/900/1800/1900MHz Band (3G): WCDMA 900/2100MHz Band (4G): FDD-LTE 800/1800/2600MHz, MediaTek MT6753 Octa-Core 1.3GHz CPU, ARM Mali-T720 GPU, Android 6.0 Marshmallow operating system, Cameras: Back: Rear 13MP Sony IMX328 camera with dual flashlight, Front: 5.0MP hynix HI553 camera with flashlight, RAM: 3GB, ROM: 16GB, Power by 4000mAh battery
Product brand: umi
Target attributes: Battery Life
Answer: attribute: battery life
value: None
source: None