This Nokia 1661 Classic mobile phone is an unlocked unit that comes with a battery and main charger. It boasts a compact design with a 1.8-inch screen size and large buttons, making it easy to use. This device supports Bluetooth connectivity, tri-band and dual-band 2G networks, and has a storage capacity of 8MB. It also features polyphonic ringtones, vibration, colour screen, and Java enabled functionalities. This mobile phone has a snap-on cover and is factory unlocked, making it easy to use with a single SIM card slot. It is a perfect choice for people looking for a simple and reliable mobile phone.