ZAP Bluetooth Music, Wireless Phone, Beanie Hat / Hands Free Personal Communication Device. Black Built-in high performance dual stereo speakers and microphone. HD stereo music Offers a stylish, hands free personal communication device, without the frustration of wires. Bluetooth 3.0+EDR - Transmission distance 30FT - Standby time up to 60 hours. Continuous working time up to 4 hours - Charging time 2-3 hours USB Li-polymer battery 3.7V - Rechargable - Syncs in seconds - Fully washable