*Hands-Free Headset: This headset is a real hands-free Bluetooth headset solution that allows you to really release your hands while driving, working, exercising and it's extremely convenient. *Perfect companion for Business Headset： The headset is the perfect companion for Business Headset, with two different sizes of silicone earplugs, deep sleep power saving mode, using CVC6.0 noise reduction technology to ensure that the call in a noisy environment, clear quality； Super Long Standby Bluetooth Specification: V4.1+EDR Transmission distance: 33ft (10m) Charging Time: about 2.5 hours Talking time: about 32 hours Music time: about 24 hours(80% volume) Standby time:about 720 hours Simple and convenient 180 degree rotatable ear hook can be used for the left and right ears, you can find a more Headset Function key use method Starting operation:Press for 3 seconds Shutdown operation:long press 4 seconds Pairing: longpress 5 seconds Answer telephone:short pres once Music play/pause:press once Language switch:pairing state or unconnected cell phone status for 1 second Up and down music operation:long press the song,double-click on the song, Safety Fitness Accessories Safety Fitness Accessories: Sweat proof and ergonomic design suitable for outdoor activities, No more headphone wearing discomfort that in-ear or over-ear headsets will bring. Perfect for outdoor activity lovers to ensure their health and safety What You Get in the Box? 1 x bluetooth headset 1 x Micro USB Charging Cable 2 x Earmuffs 1 x User Manual 1 x Carry case NOTE: For safety reasons,it is recommended not to use the headset while it is charging.If the output of your charger for your headset is over 5V,it will damage your headset potentially.It is recommended to use standard charger for your headset K21 YYK520 YYK520-1 YYK530 K06 Add to Cart Buying Options Add to Cart Add to Cart Buying Options Customer Reviews 3.7 out of 5 stars 702 3.7 out of 5 stars 25 — 4.3 out of 5 stars 29 — Price $22.88$22.88 — no data $26.99$26.99 $22.88$22.88 — no data Bluetooth Standard V 4.1 V 5.0 V 5.0 V 5.0 V 5.0 Sound HD Sound HD sound & powerful bass HD sound & powerful bass HD sound & powerful bass HD Sound Playing/Talk Time 24-32 hrs 10-12 hrs 10-12 hrs 10-12 hrs 24-32 hrs Charging Time 2 hrs 2 hrs 2 hrs 2 hrs 2 hrs Wireless Range up to 33 feet up to 33 feet up to 33 feet up to 33 feet up to 33 feet Built-in Microphone ✓ ✓ ✓ ✓ ✓ CVC 6.0 Noise Reduction ✓ ✓ ✓ ✓ ✓ With Charger Case no data ✓ ✓ ✓ no data