Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Samsung C3303 Champ Unlocked Quad-Band Touchscreen Phone with FM Radio, Stereo Bluetooth and microSD Slot - International Version - Black
Product description: The Samsung Champ is designed for young individuals who seek innovative and productive ways of using their mobile phones. With a stylish and ultra compact design, the Samsung Champ is a portable solution for users who will no longer need to sacrifice design for rich features. The device also has a curved form factor and comfortable grip. Users will be pleased to learn that despite its affordable price point, the Samsung Champ offers a rich feature set. The Samsung Champ enables an immersive music experience with a built-in radio, 3D sound effects and a dual speaker. With its long battery life, consumers won't have to sacrifice portability and can enjoy hours of multimedia use. Users can download java applications from Samsung Apps and enjoy embedded java apps. The Samsung Champ also offers Bluetooth, a micro SD card with up to 8GB of memory and comes with a headset and travel adapter.
Product feature: 2.4-inch TFT LCD display, This unlocked cell phone will work on GSM carries like AT&T and T-Mobile. Not all carrier features may be supported. Quad-Band GSM cell phone compatible with 850/900/1800/1900MHz frequencies plus GPRS/EDGE data capabilities., 1.3 MP Camera with video recording; Stereo Bluetooth A2DP; MP3/WMA/MP4 player; 3.5 mm audio jack and stereo Speakers., Social networking integration; SMS, MMS, Email; Stereo FM radio; built-in antenna; Organizer; Voice memo and microSD card, up to 8 GB., Talk time up to 12 hours - Standby up to 660 hrs.
Product brand: Samsung
Target attributes: SIM Slots
Answer: attribute: sim slots
value: None
source: None