Aerbes AB-D474 Neckband Wireless Bluetooth Sports Earphones

'-One click talk
-Voice prompt
-Volume adjustment
-Long standby time
-Wireless Version:5.0
-Driver diameter: 010mm 16 ohms
-Power: 5mWx2
-Frequency response: 20~20000Hz
-Transmission range: 10m
-Transmission frequency :2.402-2.480GHz
-Charging voltage: DC 5V
-Charging time: 1.5 hours
-Talk time: 12 hours
-Music time:Above 11 hours
-Rechargeable lithium battery:250mAh

What's in the box
1 x Sports Wireless Bluetooth Headphone
1 x Charging Cable
1 x Manual