1. Material: ABS 2. Power supply: with CR2025 button battery 3. Exquisite and small size, does not take up space 4. Multiple functions, safe operation, convenient and fast use 5. Paste installation, no damage to your car 6. External button battery, unlimited battery life, easy to replace 7. Widely applicable to various models, including cars, large trucks and trucks 8. Product size: 46mmx12mm 9. Note: The navigation learning interface must have the steering wheel learning function to use
