Item specifics material: Aluminium function: lock laptop on show use: security display devices Adjustable clamp width: 6.69"ï¼?17cm, minimumï¼?to 17.52"(44.50cm, Maximum). Product Dimension: 28.50*10*12(L*W*H,cm) alarm: No Packaging Details Unit Type: piece Features: 1)Mobile phone Security display holder with alarm function 2)With sticker connecting the samples which effectively prevent showing products from being stolen in exhibition, supermarket and shops, 3)Allowing customers to take the sample on hands and try it freely 4)Mainly designed for secure displays of live merchandises like mobile phones, cameras, mp3/mp4, PDA, GPS, ang other valuable product 5)Secure&neat displays of merchandises, interactions between consumers and merchandises are realized with this product,thus better promote sales of open merchandises. Product use 1. Product installation: Remove the double-face adhesive tap, fix on the exhibition counter (or fix the product with screws) 2. Cell phone installation: Remove the double-face adhesive tap, paste cell phone 3. Alarm indicator:Use the remote control to send signal to the host,press lock, and the host indicator light turn red, namely the alarm indicator. 4. Alarm solution: When alarm, use remote control to send signal to host, press unlock, namely solution 5. Alarm test: using remote control to send signal to host, press lock, and the host indicator light turn red, then press test to alarm test. Press unlock to finish alarm test.