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Use steps and special instructions 1. Pair with other Android devices: Open the Wireless settings of the mobile phone or other devices ---- search for the Wireless name TWS-250 and click to connect to Wireless. 2. Open the charging box cover, the earphones are automatically turned on and paired automatically, put the earphones into the charging box, and close the charging box cover, the earphones will automatically shut down and enter the automatic charging mode, and the earphones will automatically turn off when they are fully charged. 3. The left and right earphones of "TWS-250" wireless earphones can be connected to other devices separately. To 4. If the " TWS-250 " wireless headset is not connected to other Wireless devices for 3 minutes, the headset will automatically shut down. 5." TWS-250 " is compatible with most Wireless terminal devices Instructions for the headset touch button function When a call comes in, touch the left and right earphones at will to answer the call 2. Reject the call: Long press the left and right earphones for 1.5 seconds to reject the call Preparation: The software of this machine does not support the last number re-dial function. To 3 Play/pause: touch any one of the left and right ears 4. Last song: Tap the left ear 3 times in a row. 5. Next song: Tap the right ear 3 times in a row. 6. Volume +: Touch the right ear twice continuously 7. Volume -: Touch the left ear twice continuously 8. Siri voice control: long press the left and right earphones for 2 seconds, the connected mobile device enters the Siri voice control mode, (Note: this function must be controlled when the earphone and the mobile phone are in the Bluetooth connection state) 9.(1) Manual shutdown: Long press the headset left and right for 5 seconds to shut down, (2) Manual boot: long press for 3 seconds 10. Switch the game mode: touch the left and right earphones 4 times continuously Prompt tone: Gaming on 11 DUT mode: Before the Wireless headset is not connected to Wireless, touch the left and right headset for 5 consecutive times .