Product：

5L Wireless Control Light-up Warning Cycling  Camel Backpack

Model：

3B0108

Bladder Volum:

2L

Bag Capacity:

5L

Usage:

Cycling, Running, Hiking

Frequency of wireless:

2.4GHZ

Controlling distance:

3m

Transmitter's Battery:

2*CR2032

Transmitter's Shell Material:

ABS

Transmitter's Waterproof Grade:

IPX-5 

Receiver's Battery:

3.7V, 850mAh Lithium battery