From the production of the Swiss company Phonak, it works with Bluetooth technology, direct model number Phonak Audeo P90R (20 audio channels). This is the highest number of channels Phonak has reached. It is very small and cannot be seen above the ear. Look at the picture below the screen and the comparison with currency. It is very clean, like brand new, with all charging accessories, its original filters, and domes for the earpiece. Its agent is Al-Madina for Hearing. It is American used. There are many videos to learn more about Phonak hearing aids. Please visit me on WhatsApp and look at the categories of Phonak hearing aids at the bottom of the advertisement. * The hearing aids are used for hearing loss, even severe up to 85db. * The hearing aids rely on Qi wireless charging technology and a simple concept called electromagnetic induction. This helps avoid overcharging and preserves battery life. These hearing aids are the latest model produced by the company. * Charging is excellent, lasting up to 24 hours, and this is a conservative estimate, with charging taking no more than two hours. This is conditional. Look at the charging features in the picture below the screen. +++++ ((There are several advertisements for medical hearing aids and auditory devices. Please check my ads)) +++++ *. It works with Bluetooth technology and connects with all iOS and Android smartphones, computers, or TVs that have Bluetooth capability. It can play YouTube or make phone calls with a single button press. You can make a phone call without touching your mobile. There is a picture below from the Phonak diagnostic program showing its model and specifications. * It can run multiple applications via Bluetooth, such as my Phonak, which is used as a remote control to control the hearing aid via the mobile, such as adjusting the volume, controlling the sound tone, checking the remaining battery charge, and controlling all the hearing aid's features through the mobile. A picture of it is attached below the screen. * The hearing aids have a wireless feature that helps understand speech from any direction, whether from the left or right. If you want clearer pictures than those displayed here, message me on WhatsApp, and I will show you clearer and more detailed 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 programs. It is considered a speaker only and does not meet all hearing loss requirements. It has 8 channels and is unfortunately the most common in the market. 2- Category (50): This is slightly better than the first category but does not have all sound features. It has 12 audio channels. 3- Category (70): Advanced, with most sound features, but lacks some minor features. It has 16 channels. 4- Category (90): The excellent or very advanced category. This is the highest category in terms of available programs and is considered a revolution in the manufacturing of hearing devices by Phonak. It has 20 audio channels.. Conclusion: Do not buy any hearing aids without knowing their specifications, model number, and the number of channels they contain. Note: Those who want clearer pictures, message me on WhatsApp. The requested price for the hearing aids is 3300 riyals, and this price is final. Please only serious buyers should call. The new price is over 20,000 riyals. Contact its agent for the price.