①. Product Description: 4G Wireless Landline Phone Support Cordless Phone with SIM Card Gsm 850/900/1800/1900Mhz with Alarm Clock Radio Antenna SMS Function for Home Usage ②. Features: 1. 4G Wireless Landline Phone - Support GSM850/900/1800/1900Mhz, Caller ID, Save more than 100 SMS to the phone, 7-level adjustable headset volume and mute, 20 missed or received calls and the last ten numbers. More functions will be described in the user manual. 2. Battery - Built-in 3000 mAh NiMH battery provides up to 2.5 hours of talk time and 150 hours of standby time. (depending on the network environment) 3. Phone - It includes an alarm clock and FM radio function. 4. For the elderly - With a large button and font, it is clear. 5. External antenna - The external antenna makes the incoming signal more stable, eliminates disconnection problems, and ensures clear and uninterrupted communication during every call. ③. Specification: Model: F317 Color: Black, White (optional) Network support: GSM Size: 196 x 152 x 51 mm Battery: 3.7 V 3000 mAh GSM frequency: 850/900/1800/1900 MHZ AC power supply: ATT: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 2.2in. ④. Packing list: 1 x Phone Transmitter 1 x Phone Receiver li> 1 x Phone Cable 1 x User Manual ⑤. Features: 1. 4G Wireless Landline Phone - Support GSM850/900/1800/1900Mhz, Caller ID, save more than 100 SMS to the phone, 7 levels adjustable headset volume and mute, 20 missed or received calls and the last ten numbers. More features will be described in the user manual. 2. Battery - built-in 3000 mAh NiMH battery provides up to 2.5 hours of talk time and 150 hours of standby time. (depending on the ti