Feature: 1. Multi User: TENS electronic stimulator is designed with 4 independent output channels, which can be enjoyed by one or more people at the same time. 2. 20 Gears Strength: 15 modes, 20 gear strength, intelligent and multi functional personalized physiotherapy, which is suitable for all kinds of people. 3. Low Frequency Pulse: TENS electric stimulator is combining meridian pulse technology with medical massage principle, massage is more comfortable. 4. Smooth Waveform: Pulse waveform is designed according to Chinese research and development, which conforms to Chinese usage habits, has no tingling. 5. Buckle Design: White electric pulse stimulator machine is portable and compact, and can be inserted into a belt or other places, and is more comfortable and safe. Specification: .Item Type: Electric Pulse Massager Material: ABS,PC Standby Current: ≤10uA Battery: 300mAh lithium battery (built in) Main Body Size: Approx. 106 x 60 x 25mm / 4.2 x 2.4 x 1in Battery Life: 21 days (calculated by the maximum gear) Working Temperature: 0-45℃ Color: White How to Use Please carefully check the following information before using the equipment. 1. Check the gasket for any damage or irregularity. 2. Check whether the electrode leads are damaged or irregular. 3. Short press ON or OFF button to turn on the power.Step 2: Connect the electrode wire to the equipment. The FM B1501 has two independent channels, four outputs C1, C2, C3 and C4, and C1 and C2 are combined in one channel. C3 and C4 are on another channel. This will allow you to set separate strength levels on C1 and C2 or C3 and C4. 1. Insert the electrode wire into the output at the top of the device. Depending on your needs, you can use one or two outputs 2. Ensure that the electrode wire is fully inserted into the housing and fixed. Make sure the wires are not loose. Connection will reduce the power output of the equipment, which may lead to unreliable connection. 3. Repeat steps 1 and 2 to connect another wire. Step 3: Connect the electrode pads with wires. 1. Each wire has two wires with pins inserted into the connector. Insert the pin insertion ends on the wires into the female pins on the pads into the connector. Make sure that at least one pair of pads are connected to the same wire. 2. Make sure that at least one pair of pads are connected to the same pad. 3. Remove the plastic film from the gasket. Step 4: Put the pad on your body, put the pad on the part you want to treat, and put the sticky side of the pad on your skin. Step 5: Open the control unit and select the channel. Step 6: Select Mode You can select any of the 15 programs by pressing the PRG button. To switch from program 1 to program 2, press the PRG T button. To return from program 2 to program 1, press the PRG I button. Step 7: After adjusting the program required for the strength selection setting, you can increase the strength by pressing the strength button on the keyboard. Step 8: adjust the timer. The timer of FM B1501 can be adjusted for up to 80 minutes. The timer will increment in 10 minute increments. Press the timer button to adjust the timer from 10 minutes to 80 minutes. Step 9: Turn off the equipment Press the On, Off button to turn off the equipment. Step 10: Remove the pad from the skin. Gently remove the pad from the skin and put it back on the provided pad holder or plastic protective film. Step 11: Remove the gasket from the wire. Unplug the wires from the equipment. Package List: 1 x Electric Pulse Massager8 x Pulse Patches1 x Instruction4 x Connecting Wires