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Quell Wearable Chronic Pain Relief Kit

Quell Wearable Chronic Pain Relief Kit

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Quick Overview

Quell is designed for people with back pain, arthritis pain, nerve pain, leg and foot pain, among others.

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Quell is an advanced, wearable technology that uses prescription strength nerve stimulation to provide relief from chronic pain. It is 100% drug free, doctor recommended and FDA cleared for use during the day while active and at night while sleeping.


Color Orchid
Digital Pins Color N/A


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Supplier Policy

Product can be returned if the following occurred:

  1. Product delivered is not in accordance to the order.
  2. Returns are accepted on damaged products.
  3. Product can be returned after a week of acquisition by reporting to [email protected]
  4. Warranty would depend on supplier’s provision.

Shipment days:

  1. A week to thirty days shipment dependent on supplier.
Quell Wearable Chronic Pain Relief Kit

Quell features:

  • 100% drug free
  • FDA cleared for 24/7 use
  • Wearable, lightweight, slim design
  • Doctor recommended neurotechnology
  • Patented OptiTherapy® (automatically adjusts dose to optimize pain relief)
  • Quell App for iOS and Android allows you to calibrate your Quell, start and stop therapy, and adjust the intensity of therapy
  • The Quell App will also allow you to customize therapy and track therapy, sleep, activity and pain
  • The new Quell band features a durable fabric and robust velcro closure designed for longer wear. The rounded end prevents overlap of the velcro onto your clothing and a fully enclosed pocket keeps the Quell device secure in the band


Waveform Biphasic with alternating leading phase, symmetrical, rectangular
Regulated Current or Voltage Current
Net Charge per Pulse 0 ± 1 μC into 500Ω Load
Maximum Output Voltage (±10%) 100V
Maximum Output Current (<1KΩ load) (±10%) 100 mA
Pulse Duration (±4%) 200 - 400 μsec
Pulse Frequency (±4%) 60-100 Hz, randomly varying
Pulse Pattern Continuous
Maximum Phase Charge 20 μC
Maximum Current Density 0.71 mA/cm² into 500Ω load
Maximum Average Current 4 mA into 500Ω load
Maximum Average Power Density 7 mW/cm² into 500Ω load

Output Trips

No Load Device not connected to patient
Insufficient Charge Delivered charge below target
Over Load Delivered charge above target
Electrode Peeling Electrode dislodging from skin

Therapy Session

Timer 60 minutes
Start Therapy Click button once
Stop Therapy Click button 4 times
Manual Intensity Increase/Decrease Increase +1.25% per second, decrease -5%
Habituation Compensation Adaptive stepwise increase in intensity during session


Type Self-adhering, single-patient use, multiple applications
Materials Maylar substrate, silver electrode pads
Number of Electrodes 2, outer electrode area 28 cm², inner electrode area 33 cm²
Connector Medical snap (male)
Dimensions 0.2 cm x 5.3 cm x 28.3 cm (exterior)


Source Permanent rechargeable battery
Battery Type Rechargeable 3.7V Lithium-Ion battery
Battery Life 400 Charge Cycles
Charging Source AC line adapter
Line Current Isolation Patient disconnected when charging
Patient Leakage Current, DC  
Patient Leakage Current, Enclosure  


Dimensions 98 mm x 74 mm x 11 mm
Weight (without straps) 62g
IP Classification IP20
Operating Temperature Range -5° C to 40° C
Atmospheric Pressure Range 70 kPa to 106 kPa
Relative Humidity Range 15% to 93%
Transport and Storage Temperature Range -25° C to 70° C
Atmospheric Pressure Range 70 kPa to 106 kPa
Relative Humidity Range 10% to 93%

Guidance Documents & Standards

FDA Draft Guidance for Industry and Staff: Class II Special Control Guidance Document: Transcutaneous Electrical Nerve Stimulator for Pain Relief (April 5, 2010)
IEC IEC 60601-1, IEC 60601-1-2, IEC 60601-1-6, IEC 60601-1-11, IEC 62304


The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by NeuroMetrix, Inc. is under license.  
Communication between the Quell device and the Smartphone is via Bluetooth.  
Disabling Bluetooth
While all sensitive data transmission is encrypted, Bluetooth functionality can be turned off for increased privacy. If Bluetooth is disabled, then the Quell Relief App will not function, but all other functions of the Quell device will operate normally.  
To turn off Bluetooth:  
1. Plug the Quell device into the charger/wall outlet,  
2. Click and hold the button on the Quell device for approximately 10 seconds until the one orange and one white LED light up, then release the button.  
3. The Bluetooth module is now disabled.  
To reactivate Bluetooth functionality, repeat the above steps. All six LED’s should be lit.  

Bluetooth Specifications

Bluetooth Module Bluegiga BLE 113 Bluetooth® Module with Bluetooth® 4.0 low energy radio
Transmit Power +0 dBm
Receiver Sensitivity -93 dBm
FCC Rules Part 15C
Frequency Range 2402.0 - 2480.0
Output Watts 0.0011
Security Encryption
Quell App requires iOS version 8.0 or later or Android version 4.4 or later
Smartphone must support Bluetooth LE  

Do you need to have a cell phone to use Quell?

Answer: You do not. Quell has a unit that is rechargeable. It is manually turned on and off as needed.


Can a heart patient wear Quell?

Answer: Absolutely! This is very much like a tens unit. But of course if you have any concerns, check with your doctor.


Does it stay in place on your calf ?

Answer: Kind of... After a month of use, the pouch holding the device got all warped and stretched so it slides around. The sticky gel pad is what keeps it on. It's really secure.


What is the dimensions for my calf ?

Answer: The band is flexible. The resting dimension of the band is 18 in. The band stretches around them very comfortably with no sagging. The velcro closure device is VERY sturdy. This device does exactly what it says it will do.