Feature: 1. Adopt ergonomic design, comfortable to wear without burden on your ears. 2. Long endurance time with built -in large battery, suitable for outdoor sports. 3. Effectively reduce the noise of external world, bringing clearer calls and pure music. 4. Simple appearance design, exquisite workmanship, making you fondle admiringly. 5. There are two colors for you to choose from, meeting your different preference. Specification: Item Type: Headset Condition: 100% brand new Material: TPE Color: Black, Red (optional) Bluetooth Version: 5.0 Bluetooth Protocol: A2DP/AVRCP/HFP/HSP Battery Capacity: 60mah Transmission Distance: Approx. 10m/33ft Sensitivity: 103DB Talk Time: 4 hours Impedance: 32ohm Package List: 1 x Headset 1 x Charging Cable