Shenzhen Ohays Technology Co.,Ltd. is a professional manufacturer of ALARM as anti-rape personal alarm ,anti theft alarm,Bluetooth anti lost alarm,personal security alarm,personal safety alert,LED key chain security buzzer alarm,wrist strap alarm for children,personal panic button alarm,child safety wristband alarm,anti-robbery personal reminder alarm,Window & Door enter alarm. which are approved by the Quality System ISO9001. All of our products are with CE,FC ,SGS and ROHS approvals. OUR VALUE MESSAGE IS ( Quality Is Our Culture) We produce quality products to meet international needs depending on our advanced facility and strict management. we have many advanced equipment,80% of them import from oversea. We have a strong R&D team, experienced designers in electronics. We welcome all OEM and ODM orders from old and new customers. please contact Ms. Abby Zhang( sales manager - Mobile/WhatsApp: 008613530838614).