Check the listing for details. Advanced Bionics CI-5235 *TESTED* READ DESC*. Color: Silver, Condition: Used, Made in United States. Listed at 350.00 USD. up for sale is one bte and accessories including backpack phonak fm transmitter 4 rechargeable batteries charger and new coils and a few outher thing that can be seen in pictures The Advanced Bionics CI-5235 + CI-5520 is a pair of hearing aids designed for individuals who need assistance in amplifying their hearing. These hearing aids are powered by a rechargeable battery and come in a sleek silver color. With the CI-5520 model, it is suitable for fitting on either the right or left ear, providing a personalized solution for individuals with hearing impairments. Advanced Bionics is known for producing high-quality hearing aids, making this product a reliable choice for those in need of daily living aids for improving their hearing abilities.