Features: 4G Fixed Wireless Phone - Supports GSM850/900/1800/1900Mhz, Caller ID, saves more than 100 SMS on the phone, 7-level earpiece volume and silence adjustable, storage of 20 missed or received calls and the last ten dialed numbers. More features are described in the user manual. 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). Multifunctional Phone - It is not only a tool for making calls, but also an alarm clock and has FM radio function. Good for the elderly - With large buttons and clear font, it is age-friendly. External Antenna - External antenna makes signal reception more stable, eliminates the problem of disconnection, ensures that every call has clear sound quality and unhindered communication. Specification: Model: F317 Color: Black Network Support: GSM Size: 196 x 152 x 51mm Battery: 3.7V 3000mAh GSM Frequency: 850/900/1800/1900MHZ Switching Power Supply: AC:100-240V; DC:5.00V,0.65A Display: 128X64 dot array LCD screen. Package Weight: 700g/26.5oz Package Size: 27 x 19 x 5.5/10.6 x 7.5 x 2.2in About Shipping: All items will be shipped within 3 business days after payment is received. Most times you will receive them within 8-12 days. The specific delivery time depends on the circumstances. Any questions, please contact us. During the shopping process, if you have any questions, please contact us, we will reply you within 48 hours. Wish you a pleasant shopping. Thank you for your cooperation and we will make you satisfied.