Smart neck and back massage device with heating, dozens of massage pulses for neck muscles, wireless, to relieve shoulder pain, healthcare

Friendly note: 1. This neck massager is not a vibrating massager. It uses TENS (Transcutaneous Electrical Nerve Stimulation) and EMS (Electrical Muscle Stimulation) to provide pain relief and muscle relaxation. The electrical voltage of this product is 5 volts, which is within the safe voltage range. 2. F6 - No heating H62 - Default operation: heating. Press and hold the "+" button to switch to start heating and turn off. H99 - Default operation: heating. Press and hold the "-" button to switch to start heating and turn off. JT88 - Default operation: no heating. Press and hold the "-" button to switch to start heating and turn off. 3. People with heart conditions or those with implanted electronic medical devices should avoid use. 4. Not recommended for use due to illness or physical discomfort. Consult a doctor before use. Smart neck massager with TENS pulse heating for neck muscle massage, wireless to relieve shoulder pain, vibration, and health care. Specifications: Item type: back neck massager Materials: ABS Power: 4W Charging time: 1.5 hours Temperature: 42℃ constant temperature Charger: 5V-1A Features: 【High-frequency noise suppression】 Designed to reduce noise, 0-20 decibels, very quiet. 【Small curved surface design】 Comfortable design, fits the skin surface. 【Soft silicone inner arm cushion】 Soft silicone inner arm cushion, skin-friendly. 【Strong endurance】 Built-in lithium battery, USB charging, one charge, 30 minutes daily use, 15 days continuous use. 【TENS pulse massage】 Low-frequency pulsed electromagnetic current is applied to the skin, activating body cells, preventing pain caused by muscle stiffness. After receiving the product: charge it for two hours first-- Step 1: Before use, use water or essential oil with aloe vera to moisten the neck and massager head. To prevent dry skin from hindering product functions and electrical irritation to the skin-- Step 2: Place the neck massager on the neck, and there will be a task if it touches the skin.-- Step 3: Due to differences in individual resistance, if you feel slight discomfort, you can adjust the gear. H99: 8 head massage pieces + 15 speed adjustments + TENS pulse + heating. Note: The two heads are equipped with heating only, no electric tank. JT88: 4 electrode head pieces + 5 vibration heads + 15 speed adjustments + TENS pulse + heating. H62: 4 electrode head pieces + 16 speed adjustments + TENS pulse + heating. F6: 2 electrode head pieces + 15 speed adjustments + TENS pulse.