The Syma S107 is a high quality 3 channel mini indoor co-axial helicopter w/ built-in gyro and a metal frame. This model is miniature in size and its light weight makes it incredibly portable so you can take it anywhere you go. It also offers a wide infrared control and a design that is customized for indoor flying. For being only 19cm in length and weighing in at only 34grams, this mini helicopter packs a lot of power. The S107 is controlled by a 32-Level high precision speed controller, it automatically stabilizes the rotor blade system for steady lift off.  Also, the high tenacity propellers are powered by 2 solid motors with a third motor in the tail rotor, which gives this machine the power you need. The S107 comes with a high capability Li-Poly battery which is good for longer flight time, and can easily be recharged through the transmitter that is provided. The Syma S107 is a great model for any beginner, from kids to adults. Once you get the hang of flying one of these you are ready to step up to the next level.
 

Feature:

Miniature size & light weight. Super wide infrared control miniature design for indoor flying 19cm long and weighing an incredible 34 grams Controlled by 32-level high precision speed. Auto stable, rotor blade system for steady lifting-up 3-Channel Helicopter movement forward / backward / up / down / left / right High tenacity propeller POWERED BY 2 SOLID MOTORS WITH A 3RD MOTOR IN THE TAIL ROTOR High capability, dynamical Li-Poly battery. Can be recharged through the transmitter provided Charging and power indicator Controlled by digital technology. Infra red control system Tri-band Technology. Nonintervention used 3 bands High efficiency, driving motor and surge power

Speculation:
Weight: 34g size: 220x38x98(mm) Dimensions: main rotor diameter 190mm Helicopter battery: 3.7v Rechargeable lithium polymer battery Charging Time: 30-35 minutes Flight Duration: 6-8 minutes Frequency: Infrared control system - bands A, B & C Control Specification: forward / backward / up / down / left / right Range: Up to 10m (30ft)

Included:
100% Brand New 1 x 3-Channel Radio Remote Control Helicopter 1 x Remote Control (not include 1.5v AA battery) 1 x Tail Blade 1x USB Cable