Features: 1. Timer: Users can set the playing time and off time. 2. Choosing tracks: Users can select a specific track directly by choosing the sound numbers and play. 3. Sound encryption: Seller can set the passwords to Protection the sounds will not be deleted or COPY. 4. Remote control: Wireless transmission distance can reach up to 200 meters. 5. Built-in speakers, and support two external speakers. Superb designed mold with Horn access slot. Can directly installedfor the Horn (CP-SO1 or CP-S02) and louder voice. 6. Built-in Flash, TF card supported. 7. Support lithium batteries or 10 * AA batteries (optional), support external 12V power. 8. USB 2.0 Transfer rate for Download 9. Built-in 110 sounds. 10. size: 120*65*30mm