Entry Alert Sensor with Vibrating Pager Audio It also includes a USB

It also includes a USB charging port for smart phones and other electronics (not supplied)

calculator

It can also be used as an easy-to-set-up TV listening solution in mono

with excellent bass for heart sounds and crystal-clear treble for music enjoyment

The Universal Sound Monitor detects sound and alerts the SignWave

Entry Alert Sensor with Vibrating Pager Audio It also includes a USBEntry Alert for home or store. It can also be used at the front door, back door, wall, mailbox, garage, driveway and everywhere you need. Wireless portable pager easily used with motion sensor alert. Additionally can be used to monitor loved ones getting out of bed or leaving the room. Can be used by doorways or next to bed. It alerts you with vibrations and sounds when you are needed. It is robust and lightweight and can be attached to your belt or