Bluetooth Headphones Retractable Earbuds Neckband Wireless Headset Sport Sweatproof Earphones with Mic for iPhone Android Cellphone, Noise Cancelling

Specification Bluetooth Specification Version 4.1 Talk Time up to 16 hours Music Play Time up to 10.5 hours Standby Time up to 22.5 days Charging Time Less than 2 hours Operating Range 33 ft. Dimensions 5.70" (W) x 6.88" (H) x 0.57" (D) Weight 1.8 oz Call & Play/Pause Buttons On top of headset Package Includes 1 x Bluetooth Headset. 1 x USB Charging Cable. 1 x User Manuel 1 x EarbudsATTENTION When you try to retract, should not pull front of the earbud. These are very sensitive material so please retract back of the earbud. Also if headphones speak another language , press and hold play button in 5 seconds it will change again .