This high quality battery is just designed for RC super fans. It's compatible with Syma X12 quadcopter. Good choice for you to enjoy more flying joys. 

Features: 
Easy to install. 
100% brand new. 
Light weight and portable to carry. 
High quality and durable in perfermace. 
Made of good and new technoloy material. 

Specifications: 
Brand: Syma 
Item Num: X12-06 
Item Name: Quadcopter Lipo Battery 
Material: ABS 
Compatible with: Syma X12 
Item dimension: 1.2 * 1.1 * 0.3cm 
Item weight: 2.7g 

Package information: 
Package size: 3.5 * 2.5 * 1cm / 1.4 * 1.0 * 0.4in 
Package weight: 14.5g / 0.5oz 
Poly bag package 

Caution:
Don't over-charge， or over-discharge batteries.
Don't put it beside the high temperature condition.
Don't throw it into fire.
Don't throw it into water. 

Package list: 
5 *  X12-06 3.7V 100mAh Lipo Battery