Using your Behringer T-BUDS is a breeze. First, make sure the earphones are charged. You can use the included USB charging cable to charge them in the battery charging case. Once charged, take the earphones out of the case and they'll automatically pair with your device via Bluetooth. Select the T-BUDS on your device to start using them. For the best fit and comfort, try different sizes of the replacement silicone buds. When you want to cancel noise, turn on the Active Noise Cancellation feature. If you need to be aware of your surroundings, switch to the transparent mode. To control your music, volume, or take calls, simply use the touch control on the earphones. Remember, the earphones are splash-proof (IPX4), so they're great for workouts, but don't submerge them in water. Also, to keep the battery healthy, avoid overcharging. Store the earphones in the charging case when not in use to protect them and keep them charged.