【Features】 1. 4G Wireless Fixed Phone - Supports GSM850/900/1800/1900Mhz, caller ID, stores over 100 SMS messages on the phone, 7-level adjustable headset volume and mute, stores 20 missed calls or received calls and the ten most recent dialed numbers. More features are described in the user manual. 2. Powerful Battery - The 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 - Not only a calling tool but also an alarm clock and FM radio function. 4. Ideal for Elderly - With a large button and clear font, suitable for elderly users. 5. External Antenna - The external antenna ensures a more stable signal reception, eliminating issues with disconnection and guaranteeing clear communication for every call. 【Specifications】 Model: F317 Color: Black, White (Optional) Network Support: GSM Size: 196x152x51mm Battery: 3.7V 3000mAh GSM Frequency: 850/900/1800/1900 MHZ Power Supply: AC: 100-240V; DC: 5.00V, 0.65A Display: 128 x 64 dot matrix LCD screen. Package Weight: 700g/26.5oz Package Size: 27 x 19 x 5.5 /10.6 x 7.5 x 2.2in 【Packaging List】 1 x Phone Transmitter 1 x Phone Receiver 1 x Phone Line 1 x Battery 1 x User Manual