Features: 1. Timer: Users can set the playing time. 2. Choosing tracks: Users can select a specific track directly by choosing the sound numbers and play. 3. Remote control: Wireless transmission distance can reach up to 200 meters. 4. With 110 sounds and TF-card supported 5. Built-in speakers, and support two external speakers. Superb designed mold with Horn access slot. Can directly installed for the Horn (CP-SO1 or CP-S02) and louder voice. 6. USB 2.0 Transfer rate for Download 7. Support 12V lithium batteries or 10 * AAA batteries (optional), support external 12V power. 8.size: 120*65*30mm