Product Description of New SX2030 M165 Bluetooth HeadsetThese ear hook headphones use TWS true wireless technology, giving you an unexpected comfortable HiFi music enjoyment without messy wire. DSP microphone noise cancellation technology ensures clear communication, brings unexpectedly smooth and clear music to your ears. Support hands-free calls, so you can answer phone calls when walking, running, climbing, driving, etc. In addition, the built-in 55mAh rechargeable lithium battery improves super endurance, provides up to 3 hours to play music or talk.Bluetooth wireless headset.Perfectly designed for calls, music and audio control.Flexible lightweight comfortable fit and durable design. Best choice when you do sports and driving. Adopt true wireless technology, enjoy your wireless sports and driving.