Specifications Bluetooth version 5.0Operating distance 1000 metersStandby duration 200 hoursWorking duration 14 hoursCharging duration About 3 hours certificate: CE, FCC, RoHS Specifications Charging interface TYPE-C interfacePower supply requirements 5V=1ABattery type Chargeable lithium polymer batteryOperating temperature 14℉~122℉ (-10℃~50℃)Storage environment 5℉~131℉ (-15℃~55℃) With the BT-S3NS, you can talk wirelessly via Bluetooth, listen to stereo music or GPS navigation voice commands, or talk to your passenger or other motorcyclists in full duplex mode. Even if your companion doesn't have a Yaconob, the BT-S3NS uses a universal walkie-talkie protocol, which allows your gear to work with theirs, regardless of brand. ● DSP noise cancellation and wind noise processing ensure clear voice quality at high speeds, up to 120 km/h and provide an amazing conversation or music listening experience. ● In the headset intercom mode, the rider can communicate over a wide distance of 1000 meters. ● Agroup of 2-3 people, using full-duplex communication technology, supporting 3 people to pair, 2 people to talk. ● The waterproof and sunscreen design of the keyboard panel is durable. It can be used in rainy and snowy days to make your outdoor riding more wonderful. Pairing BT-S3NS Version with BT-S3 Version Step 1: Turn on device first to clear pairing record, and place two bluetooth devices within 1-meter range. Step 2: Long press the power button of BT-S3 NS bluetooth until red&blue lights flash alternately. Step 3: Press the power button on the BT-S3 version for 4 seconds to enter the red and blue light flashing mode. Step 4: Short press power button and phone button of BT-S3 NS bluetooth simultaneously, it will automatically search for the BT-S3 bluetooth for pairing, and when you hear 'Intercom connected', the connection is successful. Note: BT-S3 NS version bluetooth can initiate pairing only, BT-S3 version cannot actively connect BT-S3 NS version bluetooth. Pairing BT-S3NS with Other Bluetooth Headsets Step 1: Turn on device first to clear the pairing record, and place two bluetooth devices within 1-meter range. Step 2: Long press the power button of BT-S3 NS bluetooth until red & blue lights flash alternately. . Step 3: Turn on other bluetooth and enter red and blue light flashing mode. Step 4: Short press power button and phone button of BT-S3 NS bluetooth simultaneously, it will automatically search for the BT-S3 bluetooth for pairing, and when you hear 'Intercom connected', and the connection is successful.