Product information: sound module used in the children\\'s sound book Duration time: with 3 buttons, each button can put 3-30 seconds sound. Batteries: 3PCS AG10 button cell (replaceable batteries) material for housing: ABS Customized design are welcome Company Profile: Tung Wing Electronics is the professional production of consumer electronics, toys, gifts and other field of the products. Our company is mainly including sound module, LED/fiber module, plastic electronic products, electronic toys and gifts, sound book etc. The company was founded in 1987, is located in Shenzhen. Factory building covers 8500 square meters. After years of development and continuous improvement, over 600 existing workers, over 100 staff members, 30 engineers. Our company have perfect departments, such as engineering department, sampling department, bonding/SMT department, molding department, injection department, pad printing/screen printing/painting department, production department, QC, QA and business department etc.. Any questions, please feel free to contact crystal TEL :0086-755-28791270 FAX :0086-755-28790649 Mobile :0086-13417449110 Skype :crystal52062 Website :www(dot)sztungwing(dot)com E-MAIL : lucia206(at)msn(dot)cn