ITEM NAME:Anti Snoring Device,Intelligent Anti Snore Wristband, Stop Sleeping Snoring W8F7 Anti Snoring Device,Intelligent Anti Snore Wristband, Stop Sleeping Snoring W8F7 High quality anti snore devices effective to reduce snoring, improve sleep quality Intelligent device, automatically detects snores when fall sleep Easy to use, wear and remove Working time: 8 hours automatic off The intelligent snore device is when it detects snoring, Bionic detection program in chip (EBI) is activated immediately, In a gentle and adjustable way, through the skin to the motor nerves, without awakening the user under the premise of promoting the user to change the sleeping position due to reflex, to suppress and reduce the effectiveness of snoring. Battery: AAA batteries ( packing not include battery) Colour: Black Material: ABS+PP Size: 10*7*3cm Package Contents: 1 x Anti-Snoring Device 1 x Manual 1 x Wrist strap 2 x Wristband buckle 1 x Screwdriver Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.