TWO YEARS GUARANTEE PERIOD - 2 years guarantee period and 30days no reason to return | VOICE PROMPT FUNCTION - It could activate SIRI and reminder user "Battery high/Medium/Low", "Power on/on" ,"Pairing", "Connected/Disconnected" via voice. | PAIR WITH 2 BLUETOOTH DEVICES - Pair with 2 Bluetooth devices at the same time. (How to connect two phones : 1. pair with the first mobile phone, then turn off both the Bluetooth headset and the Bluetooth function of the first mobile phone. 2. Turn on the headset again(Long press 5-8 seconds, make headset pairing status), pair with second mobile phone as normal. 3. Turn on the Bluetooth function of your first phone. the headset will connect the first again. Then 2 mobiles connected)

Universal and Fast Pairing, Comfortable to Wear | TWO YEARS GUARANTEE PERIOD - 2 years guarantee period and 30 days no reason to return | VOICE PROMPT FUNCTION - It could activate SIRI and reminder user "Battery high/Medium/Low", "Power on/on" ,"Pairing", "Connected/Disconnected" via voice. | PAIR WITH 2 BLUETOOTH DEVICES - Pair with 2 Bluetooth devices at the same time. (How to connect two phones : 1. pair with the first mobile phone, then turn off both the Bluetooth headset and the Bluetooth function of the first mobile phone. 2. Turn on the headset again(Long press 5-8 seconds, make headset pairing status), pair with second mobile phone as normal. 3. Turn on the Bluetooth function of your first phone. the headset will connect the first again. Then 2 mobiles connected)