1. Preschool read Book 8 2. Reading by The Talking Pen 3. Story, ... ,Games,etc 4. OEM 5. 32 pages per book Preschool Read Book This set of audio books including: National Studies, English ... language.specification(P1,P2,P3,P4):1. OID Head, use sonix 4th generation OID head;2. Speaker, dual-channel, high-fidelity;3 ...