Features:1. Adopt 2.4GHz digital frequency hopping technology, high efficiency and stable wireless transmission, strong anti-interference, not only improve the call quality, but also support long-distance calls within the range of 300 meters (300 meters outdoor, 50 meters indoors). Improve the practicability of cordless phones, and improve signal coverage and wall penetration to make connections more smooth and free to talk.2. With 1.152Mbit/s, the transmission speed is faster, the sound quality is clearer, and the intercommunication machine is free to intercom and free to talk. Call forwarding, more support for three-way real-time calls, communication is more convenient.3. With high-definition microphone and built-in intelligent noise reduction technology, the call is clear and pure. Built-in microphone function, when you call, you can switch to the hands-free calling mode by simply pressing the dial button.4. Double handsfree and handle call.5. 2.4G intelligent digital cordless technology.6. The call is clear and anti-interference is strong, the wireless effective distance is long, and the radiation is low.7. The four-level handsfree/handle volume can be adjusted, and the five-level ringer volume can be adjusted.8. One host can be equipped with up to 4 sub-machines and 1 set of family number functions.9. The host has a basic call function during a power outage.10. Host and slave DTMF/FSK caller ID.11. Free intercom between the host and the sub-machine, and can be transferred to each other.12. LCD white backlight function, high definition LCD display effect.13. The sub-machines has a three-party calling function (available in multiple slaves).14. 40 groups of incoming caller IDs, 10 groups of outgoing caller IDs15. The sub-machine has a low-power alarm function and an over-range alarm function.Specification:Name: W128 Digital Wireless Telephone One for OneSize: about 20*16.5*6cm/7.87*6.5*2.36inch (host), about 14.5*4.6*2.3/5.71*1.81*0.91inch (slave)Standard frequency:Low frequency group: 697 770 852 941HzHigh frequency group: 1209 1336 1477 1633HzFrequency offset: no more than 1.5%Level:Low frequency group: -9dBm3dBHigh frequency group: -7dBm3dBHigh and low frequency group level difference: 21dBRinging level:Landline: 70dB(A) (loud)Mobile phone: 55dB (A)Transmit power:Host: 20mWMobile: 20mWFrequency: 2402-2480MHzNumber of channels: 90CHLandline power supply: 50/60Hz 100-240V AC power supply (output DC 7.5V)Sub unit power supply: 1.2V 2*rechargeable batteries (not included)Color: black, white(optional)Package List:1 * Landline1 * Earpiece1 * Telephone Line2 * Power Adapter 1 * Sub-machine1 * Earpiece Curve1 * Charging StandNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..