Smart Device Prototype Development

I'm seeking a skilled developer or team to create prototypes for two innovative smart lifestyle devices. The devices will incorporate the following core features:

- Smart audio playback
- Motion-based reminders
- Offline voice assistant capabilities

Additionally, they will need to integrate with a mobile app, with a focus on user interface and experience, and be developed for Android.

Objectives:
- Validate user experience
- Test offline voice recognition and hardware/software integration
- Discuss timeline, budget, and feasibility for the initial build

Ideal Skills and Experience:
- Experience in hardware and software integration
- Strong background in mobile app development, particularly for Android
- Expertise in UI/UX design
- Knowledge of voice recognition technology

I'm looking for an expert who can provide insights on the technical requirements and help shape the prototypes for both devices.