Hello, The key difference between 40K and 80K fat-burning devices lies in the difference in ultrasonic frequency (40kHz vs. 80kHz), which directly affects penetration depth, focused energy, and applicable areas. Below is a detailed comparison analysis: #Core Differences:# 1. Features: 40K Fat Blaster and 80K Fat Blaster 2. Frequency: 40kHz (low-frequency ultrasound) and 80kHz (high-frequency ultrasound) 3. Energy Penetration Depth: 40K penetrates deeper (approximately 4-6cm), 80K penetrates shallower (approximately 1-3cm) 4. Energy Focus: 40K is relatively dispersed, 80K is more concentrated and precise 5. Applicable Areas: 40K is suitable for areas with thicker fat, 80K is suitable for areas with thinner fat or delicate areas 6. Pain: 40K is generally more noticeable (deeper effect), 80K is generally milder Summary 40K = Powerful, deep fat reduction (suitable for large areas) 80K = Precise, shallow body shaping and skin tightening (suitable for smaller areas) Practical Consideration: A single treatment will have limited results. Typically, 3-6 treatments (2-4 weeks apart) are required. Maintaining a healthy lifestyle is crucial for long-term body shaping. 

For Muscle Toning: EMS pads are ideal if your goal is to strengthen and tone muscles, especially after weight loss or to enhance athletic performance. For Fat Reduction: Lipolaser pads are suitable if you're aiming to reduce stubborn fat in specific areas without invasive procedures. 

Hi, the wattage of the EMS pad on the 80k 11in1 is 15 watts. 

Hello, The 80k fat-blasting head will gradually feel warm as the frequency increases, but it won't be particularly hot. As long as you feel the frequency sound, it's normal, so don't worry. 

Hello, Sorry to hear this. This is not an electric shock. The 4-pole head is a radio frequency head,If the energy is turned up very high and it is suddenly placed on the skin, it will feel like a touch of pain because it generates focused heat. To operate the RF head, you can first adjust the energy by 1-2 levels, then apply the product, touch the skin and move it slowly. If you open it up all at once and put it on your body, few people can bear it. 

Hello, As long as it is a skin care gel, the brand is not limited. You can also choose essential oils, creams and lotions that are rich in moisture. Thank you 

Hello, 80k is just a slightly higher frequency than 40k, but the functions are the same. If you are sensitive to the frequency sound of fat-blasting head, you can try 40k first, but for those who have not used it, 40k and 80k are the same.