Medel SONNET Rechargeable battery

The Medel Sonnet and Sonnet 2 rechargeable lithium ion batteries come in two varying sizes;

Micro - up to  7 hours of use per charge

Standard - up to 10 hours of use per charge

The Rechargeable batteries require the RCB adaptor to connect to the Sonnet and Sonnet 2 cochlear implant sound processor