Additionally, the KX-TGA660 provides both English and Spanish menu language options and comes included with two rechargeable Ni-MH AAA batteries.
The KX-TGA660's caller ID feature can store up to 50 missed calls while its Call Block feature allows users to block up to 30 numbers from getting through. Its 1.8" full-dot mono display and keypad are backlit for easy nighttime use. Meanwhile, the KX-TGA660's rechargeable Ni-MH AAA batteries provide up to 13 hours of continuous talk time or around 11 days of standby time, with charge time taking about 7 hours from a completely drained state.