A4tech HS-30i Stereo Headset 128GB Power: (x2) AAA batteries required

Power: (x2) AAA batteries required (for bike)

Provides excellent heat dissipation and perfect protection for your MacBook

USB 3: 5V / 1A (Max)

Access Point Mode

4Gbps for seamless video and audio transmission

A4tech HS-30i Stereo Headset 128GB Power: (x2) AAA batteries requiredFeatures: Inner Acoustic Cavity: Delivers a well balanced sound of astonishing quality. 40 mm Speaker Unit: The high precision 40 mm unit deliver the accurate sound reproduction and hours of comfort listening. Adjustable Built in Metal Headband: Light weight and adjustable headband for optimum fit and long term comfort. Omnidirectional Mic: Omnidirectional noise cancelling microphone makes call clear and natural. Soft On Ear Cushions: Soft on ear