The earphones are comfortable in the ears, and will not be painful when worn for a long time, and they will not fall off easilyThe wide compatibility allows the headset to be easily matched and connected with the device you are using, simple to use and easy to operateWhether as a gift to a friend or to yourself, this will be a great value choice CVR 4.0 make it support wind noise suppression. Built-in rechargeable lithium battery, make it power energy. Specifications: Bluetooth Version: Bluetooth V4.0+EDR Bluetooth Profiles: for HSP/HFP/A2DP/AVRCP Material: ABS Ear Coupling: Ear Hook Effective Range: about 10m/33ft Standby Time: about 100 Hours Phone Talk Time: about 4 Hours Power Supply: Built-in Rechargeable Li-on Battery(Included) Charging Time: 1-2 Hours Input Voltage: DC 5V Working Voltage: 3.3V - 4.2V Charging Current: 95mA Features: Bluetooth, Wireless, Phone Accessory, Scorpion Shape Item Size: 6.35cm x 11.43cm x 1.52cm/2.5" x 4.5" x 0.6" (Approx.) Notes: This headest is only used for making phone calls, cannot be used to listen to music. Also no background music when playing games on PS3. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1x Bluetooth Headset 1x USB Cable 2 x Ear Loops 1x User Manual