buy Wireless Phone Gigaset AS690 Duo Black . The Gigaset AS690 Duo is a cordless desktop phone that offers a practical and functional solution for daily communication at home or in the office. It features a black design and is sold as a set including two cordless handsets, allowing simultaneous use in different rooms. Its backlit black and white LCD screen stands out for providing high contrast that improves the readability of numbers and menus, while the keypad with illuminated keys ensures comfortable dialing even in low-light environments. Despite being cordless, the AS690 model is characterized here by not being fully wireless, suggesting its primary use as a desktop phone with a fixed base. Among its technical features is the option to adjust the hands-free mode volume to optimize sound quality, allowing selection of high or low frequencies for a more comfortable listening experience. Additionally, it includes an advanced function for managing unwanted calls, with the ability to block up to 32 numbers and anonymous calls, enhancing control over who can contact the user. Regarding expansion capacity, the system can support up to four additional compatible handsets, providing flexibility to cover different areas without losing connectivity. Finally, this phone includes ECO DECT technology, which minimizes radiation and reduces power consumption in standby mode, contributing to more sustainable and environmentally friendly use. In summary, the Gigaset AS690 Duo combines ease of use, features adapted for clear and efficient communication, and ecological respect, making it a balanced choice for those seeking a stable and simple telephone system for their space. Type: Wireless PhoneDeskProduct with plug: YesType of plug: Plug EUColour: BlackCharacteristics: Built-in displayBacklightedWirelessLED charge indicator lightFunctions: Call identifierBattery type: AAAConnectivity: BluetoothFrequency: 50 HzMaterial: Nickel-Metallic hydride (Ni-MH)Number of batteries: 2Diagonal of the screen (cm): 5,1 cmAC input voltage: 230 V