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O2 User Manual

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Contact: @DECHOYECHO---Facebook

Phone: +8618077357857

Tel: 111

Email: support@idechoyecho.com; O2 Users: Email us at contact@idechoyecho.com

Add: Rm 1010, 10/F, Unit 1, Bldg 2, 21 Wuqing North Rd, Wuhou Dist, Chengdu, Sichuan, China