Wireless Headphones Bluetooth Nackband Name: Wireless Headphones Bluetooth Nackband Battery Charge Time: 2 Hours BIS/ISI Certification Number: 0 Bluetooth Range: 10m Bluetooth Version: 5.1 Charging Type: Micro USB Color: Red Compatibility: All Smartphones Frequency: 10 Hz Material: ABS Plastic Mic: Yes Model Name: 236 Nackband Net Quantity (N): 2 Noise Cancelling: Yes Play Time: 12 Hours Type: In The Ear Warranty Period: 1 Year Warranty Type: Carry In Bluetooth Neckband Earphone Bluetooth Headset (Red, In the Ear)+VIVI EARPHONES FREE FREE Country of Origin: China