Please note that all small remote controls (except for 032) do not come with batteries. Buyers need to purchase 2 No. 7 batteries for use.
Product material: ABS
Lens/transmittance: 40mm diameter non spherical optical resin lens (supports naked eye viewing of myopia below 600 degrees)
Cushioning material: artificial leather
Headband material: leather+artificial leather
Large screen visual wide-angle: 90-100 degrees
Headphone link type: Bluetooth
Headband material: leather+artificial leather
Function buttons: Volume (up/down) and playback pause, answer phone calls
Wireless protocol: 4.2
Battery: Rechargeable lithium battery 3.7V 350mAh
Continuous use time: about 15 hours
Mobile phone support: 5.5-7.2 inches for Android and Apple systems