Features: 1. 4G wireless landline phone - Supports GSM850/900/1800/1900Mhz, caller ID, save 100+ SMS on the phone, 7 levels adjustable headset volume and mute, 20 storage space for missed or received calls and the last ten numbers dialed. More features will be described in the user manual. 2. Powerful battery - Built-in 3000mAh NiMH battery provides up to 2.5 hours of talk time and 150 hours of standby time. (depending on network environment) 3. Multifunctional phone - It is not only a tool for making calls, but also an alarm clock and FM radio function. 4. Perfect for the elderly - With a large button and the font is clear and suitable for the elderly. 5. External antenna - The external antenna makes the received signal more stable, eliminating disconnection problems, ensuring clear and unobstructed communication in every call. Specification: Model: F317 Color: black, white (optional) Network support: GSM Dimensions: 196x152x51mm Battery: 3.7V 3000mAh GSM frequency: 850/900/1800/1900 MHz Switching power supply: THAT: 100-240V; CC: 5.00V, 0.65A Display: 128 x 64 dot matrix LCD. Package weight: 700g / 26.5oz Package size: 27 x 19 x 5.5 / 10.6 x 7.5 x 2.2 inches Packing list: 1 x telephone transmitter 1 x telephone handset 1 x telephone line 1 x battery 1 x user manual < /ul>