Our Crystal Hourglass Sand Bluetooth speaker is very delicate and beautiful. The premium glass material and natural sea sands make it be a high quality sand timer. We package it with a delicate gift box so that you can give it directly to others as a present・ such as kids・ your friends or families. It is suitable not only for timer games but also for timing cooking. With its delicate design・ the product is a great decoration for mantel・ office desk・ coffee table・ book shelf・ curio cabinet or table.There are 5 Mode for this device: Bluetooth Mode・ Radio Mode・ Line-in Mode・ Music Mode・ hands-free Mode.Specifications:1. Output Power : 5W2. Vision: V4.23. Wireless distance: 15metres 4. SNR: >80dB5. Rated Voltage: DC+3.7v6. FM: 87.5MHz゛108MHz7. Power Supply: Li-ion battery 1100mAH DC+3.7V USB power Note:1. To connect another Bluetooth device・ you must disconnect current Bluetooth first.2. Restart after shutdown・ if unable to connect automatically・ you need to re-connect manually.Important Notice:1. Before use・ please carefully read the product manual and the instructions Notes・ in order to play the best performance and avoid unnecessary losses.2. Because there are many U disk / TF card brands on the market・ this product is not guaranteed to support all U disk / TF card. Please confirm your U disk / TF card can be purchased at the normal use of the product before.Package Included:1 x Crystal Hourglass Sand bluetooth speaker1 x Package Gift Box 1 x USB cable for Line-in and charge. 1 x User manual