Lychee Fixed wireless telephone makes your life better!!! Are you looking for a practical telephone? Wireless quad-band GSM desktop phone, which combines the practical functions of a desktop phone with the low-cost calling technology of a mobile sim card. This desktop phone is a great choice for home and office. specification:Voltage: DC 5V Backup Battery: 1000mAh Charging voltage: 4.2V Charging time：2-3 hours Battery standby time: 3-4 days Display size: 2.4 inchl Speech: Main product size: 19x15x4cm (length x width x depth). Hauptproduktgewicht: 370g Packages:1x fixed telephone 1x microphone 1x microphone cable 1x power adapter and cable 1x battery 1x manual Warning and Maintenance Some electronic devices are susceptible to electromagnetic interference sent by the phone if inadequately shielded. Keep using the phone at least 20 cm or as far away as you can from TV sets. radio and other automated office equipment so as to avoid electromagnetic interference. Operating the phone may interfere with medical devices like hearing aides and pacemakers, or other medical devices in hospital. Consult a physician or the12manufacturer of the medical device before using the phone. Be aware of the usage limitation when using the phone at places such as oil warehouses, or chemical factories, where there are explosive gases or explosive products being processed, because even if your phone is in idle state, it still transmits radio frequency (RF) energy. Therefore, power off your phone if required. Do not touch the antenna while calling, Otherwise it will affect the quality of calling and waste battery energy. The damaged antenna will cause slight burn while touching your skin. Keep the antenna free from obstructions and position the antenna straight up. This will ensure be