Sony AIT (Advanced Intelligent Tape) format is intelligently engineered to stand apart - no other tape cartridge features both an MIC chip (the brains) and a pure metal magnetic layer designed for maximum capacity and longevity (the brawn) .
This lithium ion battery is suitable for Sony Ericsson T300, T306, T310 and T316 cell phones. Specifications: Capacity: 550mAH. Talk Time up to: 90 minutes. Standby Time up to: 55 hours.