1.Portable, Steady.Safe 2.Cert: CE, RoHS,ISO9001-2000,TUV,GMC 3.Application:iPad/3G Phone Feature:Bluetooth Compliance: Bluetooth V2.1 Compatibility: Mobile phone support Bluetooth V1.1(and above) Alerted by both strong vibration and sound if your iphone/ipad away from your with 10 meter. Frequence band: 2.4GHz ISM Spectrum, frequency hopping 79channels Lower power consumption, Standby time:7days ...