ALEKO Extra Lithium Battery for Intercom Wireless Video Door Phone System ALEKO LM163. It is no longer a problem with high tech video door phone. With this system you can supervise front door situation at any time, take a picture of the person at the door and store it in memory, communicate with hands-free audio and unlock the gates or door remotely.

• Compact, lightweight, powerful high energy density design, long service life
• Retains power longer than traditional batteries, long shelf life
• 2000mAh, 3.7V, 7.4 Wh
• Use Specified Charger only
• Dimensions: 2 3/8 x 1 1/2 x 3/16 inches