Hangang Eye Mask for Sleeping,Sleep Mask Eye Mask Sleep Headphones Velvet Music Eye Mask Wireless Bluetooth Headsets for Sleeping/Relaxation/Air Travel/Meditation/Insomnia (pink)

Features: ? Headband goggles style ? Dynamic vocal principle ? Wireless Bluetooth ? USB socket, plug and play ? Noise-canceling headphones ? Comfortable and easy to carry ? Music player, the last call to replay numbers, incoming calls, end calls, calls refused to answer the call volume adjustment, use the phone keypad dial Operation Guide: ? 1, About pairing: After the bluetooth sleeping headphones is turned off, press and hold the key until the red and blue lights alternately flash and send out the "Pairing" sound, then you can connect Bluetooth, Bluetooth name "COZY". ? 2, About the on / off: On: press and hold the switch key for about 3 seconds until the red and blue lights colleagues light up, and hear the "power on" tone. That is to complete the boot. Off: press and hold the switch key for about 5 seconds until the red and blue lights are on at the same time. When you hear the "power off" tone, the shutdown is completed. Product parameters: ? Product weight: 0.3kg ? Operating temperature range: -10-50 ? ? Operating humidity range: 10-90% ? Product Size: 10 * 28cm ? Bluetooth protocol: Bluetooth Ver.4.0 + EDR ? Power standard: class 2 ? Communication distance: 10M ? Bandwidth: 2.4GHZ (2.402 2.480GHZ) ? Transmit power : <8dBm ? Speaker parameters: 30MM 32 Europe 0.25W * 2 ? MIC distance: about 1M ? Noise reduction method: CSRCVC ? LED indication: power / code / charge ? Continuous use of time: 6 - 8 hours ? Working current: 18-20mA ? Standby time: 250 hours ? Charging time: about 2 hours (first charge before use). Package: ? 1 x Bluetooth Eye Mask ? 1 x storage bag ? 1 x USB cable ? 1 x user manual