Duet Mini High Bass Noise Cancelling Neckband

Material: ABS Strong Plastic Product Type: Variable (Product Dependent) Type: In The Ear Compatibility: All Smartphones Multipack: 1 Color: Assorted Mic: Yes Bluetooth Version: 3.9 Operating Voltage: 10 Volts Charging Type: Micro USB Battery Charge Time: 2 Hours Frequency: 10 Hz Control Button: Yes Play Time: 10 Hours Dynamic Driver: 10 mm Transmission Distance: 10 Mtr Noise Cancelling: Yes Service Type: Repair Sports Earphones: Yes Sweat Proof: Yes Sizes: Free Size (Length Size: 10 cm) Dispatch: 2-3 Days