Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: BrightDays K60 drone 2.4G 6-Axis 4CH Headless Mode with 2.0MP Camera RC Quadcopter Black
Product description: Introduction: Color:Black Control Distance:100m Playing Time: 8-10mins Charging time: About 60 minutes Battery: 3.7V 650mAh Li-on Function: ascend/descend, turning left/right, left/right side fly, 360o 3D flip, Cool led light,Hovering, a key roll,one key return function,Headless,Throwing off. 1. One Key Return. Built-in GPS location recognition system, when the drone out of control ,one key return will easy get the drone back. 2. Headless Mode,Newest remote control technology,auto-recognise the direction of the remote controller, regardless of your aircraft is in which direction,will be based on the remote controller direction. It's very suit for beginner. 3. 3D Flips "n" Roll,There are 3 channels of remote control : low speed, medium speed, high speed . 3D Roll,at any channel, press the roll button on top of the remote control,the quadcopter will roll. At high speed, you can finish the roll via control the lever. Manual roll at high speed. One key roll at any channel. 4. Newest 6 Axis Stabilization System precise hovering in the sky and 360' 3D eversion . 5. 2.4GHz Spread Spectrum Technology enhance aircraft remote control distance,strong anti-jamming capability,less power consumption,and can control different quadcopter at the same time without interfere with each other . 6.With LED Light Not only makes night flight much easier,but also makes the quadcopter look more attractive. Package Include: 1 x K60 Quadcopter 1 x Transmitter(Remote Control) 1 * USB Charger 4 * Outer Frame 4 * Blades 1 * 3.7V 650mAh Li-poly Battery 1 * Screwdriver 4 * Screws 2 *Landing Gear 1 * English Manual 1 * 2MP Camera with 2GB memory card
Product feature: Built-in GPS location recognition system, when the drone out of control ,press the one key return button ,the drone will come back your side., High definition 2.0MP camera allows you to record the beautiful views from the sky angle, With LED Light Not only makes night flight much easier,but also makes the quadcopter look more attractive, Adoption 2.4G Auto Connection Technology, Scores of Quad-copters Can be Play at the Same Time.
Product brand: BrightDays
Target attributes: Number of Channels
Answer: attribute: number of channels
value: 4ch
source: product title