From the production of the Swiss company Phonak, it works with Bluetooth technology. Direct model number Phonak Audeo P90R (20 sound channels), which is the highest number of channels Phonak has reached. Very small, not visible above the ear. Look at the picture below the screen and the comparison with currency. Very clean, like brand new, with all charging accessories. Its agent is Al-Madina for Hearing. It is American use, and there are many videos to learn more about Phonak hearing aids. Please visit me on WhatsApp and look at the Phonak hearing aid categories at the bottom of the ad. * The hearing aids are rechargeable, so they save you from using batteries, and their batteries are very excellent, as they are charged in a very short time, not exceeding two hours during sleep, and they last with you all day, and in fact, they last 24 hours. Look at the charging features in the picture below the screen.. *. It works with Bluetooth technology and connects with all iOS and Android smartphones, computers, or TVs that have Bluetooth capability. You can play YouTube or make a phone call with the touch of a button. You can make a phone call without touching your phone. There is a picture below from the Phonak diagnostic program showing its model and specifications. * Multiple applications can be run via Bluetooth, such as my Phonak, which is used as a remote control to control the hearing aid via the phone, such as increasing the volume, controlling the sound tone, checking the remaining battery charge, and controlling all the hearing aid's features via the phone, a picture of which is attached below the screen. * The hearing aids have a wireless feature that helps understand speech from whichever direction the sound comes from, left or right. Whoever wants clearer pictures than those displayed here can contact me via WhatsApp, and I will show them clearer and more accurate pictures than these. *Introduction to Phonak hearing aid types.. There are four types of Phonak hearing aids, as follows: 1- Category (30): This is the lowest category of hearing aids with the fewest features. It is considered a sound amplifier only and does not meet all hearing loss requirements. It has 8 channels and is unfortunately the most widespread in the market. 2- Category (50): This is slightly better than the first category, but it does not have all the sound features. It has 12 hearing channels. 3- Category (70): Advanced, has most sound features, but lacks some minor features. It has 16 channels. 4- Category (90): The excellent or very advanced category. This category is the highest in terms of available features and is considered a revolution in the manufacture of hearing devices from Phonak. It has 20 sound channels.. Conclusion: Do not buy any hearing aids without knowing their specifications, model number, and the number of channels they contain. +++++ ((There are several ads for medical hearing aids, check my ads)) +++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++ Note / Whoever wants clearer pictures, contact me via WhatsApp. The requested price is 2900 riyals, and this price is discounted and non-negotiable.