NTT Docomo Inc. will release later this month in Japan the 'Card Keitai KY-01L', a new mobile phone that has the same size of a business card.

About 9 centimeters high, 5 centimeters wide and about 5 millimeters thick, the new mobile phone weighs only about 47 grams.

The basic device, made by Kyocera, has a very energy-efficient, black-and-white electronic paper display, and supports basic functions for making calls, short messaging and VoLTE, Wi-Fi for web browsing.

It also supports VoLTE and Wi-Fi tethering. It is possible to use it according to customer's usage scenes, such as carrying it in a pocket, card case, notebook.

The Japanese company is aiming at customers who already own a larger smartphone , part of a trend to offer so-called companion mobile devices. The phone will cost 32,000 yen ($280).

Specifications 'Card Keitai KY-01L'

• Size: About 91 mm x 55 mm x about 5.3 mm
• Weight: Approximately 47 g
• Battery: 380 mAh
• Continuous standby time (LTE / 3G / GSM): About 100 hours
• Continuous talk time (LTE / 3G / GSM): About 110 minutes
• Display: About 2.8 inches Electronic paper
• Display resolution: 480 x 600
• External memory: No
• LTE / VoLTE: Yes
• Maximum reception speed / Maximum transmission speed: 100 Mbps / 37.5 Mbps
• Camera: No
• Waterproof / dustproof: IPX 2
• Bluetooth: 4.2
• UIM card: nanoUIM
• Charging port: USB Micro-B
• Color: Ink Black
• Manufacturer: Kyocera Corporation