Troops Bluetooth Neckband Bluetooth  (Multicolor, In the Ear)

SPECIFICATION: Bluetooth version: 4.0 + EDR Bluetooth Profile: HFP 1.6, HSP 1.2, AVRCP 1.4, A2DP 1.2 NOISE REDUCTION: CVC6.0 INTELLIGENT Sound Mode: Stereo Operating Distance: 10 meters Charging time: about 2 hours Standby time: about 100 hours Talk/Playing time: 3.5 hours Power Source: Built-in Rechargeable Li-ion Battery HOW TO PAIR WITH: 1.Power on & Enter paring mode: Press the "power on" button for 5 seconds until the Blue LED light and Red LED light quickly flash alternatively (with "paring" voice) (Please don't stop pressing the button if you only see the Blue light flashing!!) 2.Use a bluetooth function mobile phone or other bluetooth master device. 3.Try to search the device and connect it(with "connected" voice). 4.Press the "power on" button once while the call is coming / end call. CONTENT: 1 X Sport Bluetooth Stereo Earphone 1 X USB Charger Cable