The NICAD rechargeable batteries are old and still work; however, duration time is limited - would recommend replacing. You can always use 3  AA batteries, or there are numerous replacement NIMH batteries available online - google search Motorola 75720 battery replacement.

Belt Clips not Included.

Motorola TALKABOUT T5720 Two-Way Radios With Docking Charger walkie talkies

The Motorola T5720 two way radio supports all 22 FRS and GMRS channels with 38 interference eliminator codes. The T5720 has a maximum range of 5 miles on the GMRS channels. This model allows you to choose from 10 different call tones, and will allow you to talk "hands-free" if used with the optional "hands-free" accessories. This value pack includes two Motorola T5720 two way radios. Each T5720 two way radio requires 3 AA batteries, which are not included.

-22 Total Channels
-5 Mile Range
-7 FRS Channels
-8 GMRS Channels
-7 Shared FRS/GMRS Channels
-38 Interference Eliminator Codes
-1.0 Watt Output Power
-Uses 3 AA Batteries or Rechargeable Battery Pack
-Hands-Free (VOX) Use with Optional Accessories
-10 Call Alert Tones
-QT Noise Filter
-Talk Confirmation Tone
-Backlit LCD Display
-Battery Meter Indicator
-Audible Low Battery Alert
-Time Out Timer
-Keypad Lock
-Keystroke Tone Signal
-Drop-In Charge Capable
-Audio Accessory Connector