PYLE Audio PS-BTHR60 is a Bluetooth® Sport Training Heart Rate Monitor & Transmitter that enables you to monitor your exercise real-time and maximum heart beats. You can synchronize ALA COACH+ App with Bluetooth® Smart (Bluetooth 4.0/BT 4.0) connection program. This Heart Rate Transmitter (PSBTHR60) enables you to monitor your exercise real-time and maximum heart beats and transmit the heart's signal to the App and receiving device for display. The device is compatible with iPhone 4S / iPhone 5, The New iPad / iPad 4 / iPad mini and iPod Touch 5.