A rechargeable hair styling tool may be plugged into an electrical outlet to enable charging of each battery and operation of the hair styling tool. Electronics of the hair styling tool may enable it to alternately operate under power from the battery or batteries (i.e., stored power) while the hair styling tool is unplugged from an electrical outlet (e.g., a wall socket, etc.) and under power of an external source of electricity while the hair styling tool is plugged into the electrical outlet. Each heating element of such a rechargeable hair styling tool may be heated when the hair styling tool is plugged in and, once each heating element has been heated to a sufficient temperature, continue to function under power supplied by the battery or batteries of the rechargeable hair styling tool.

A hair styling iron with a built-in Bluetooth for using functionalities of the built-in Bluetooth while using the hair styling iron at high temperature is disclosed. The disclosed hair styling iron includes a circuit board with a built-in Bluetooth, a speaker, control button(s) and a rechargeable battery. Once the hair styling iron is paired with another Bluetooth device, the user can control certain function(s) of the connected Bluetooth device and also stream audio media from the connected Bluetooth device. The rechargeable battery provides power to the speaker and the circuit board when the hair styling iron is not connected to an alternative current (AC) power source.

A hair styling iron with a built-in Bluetooth for using functionalities of the built-in Bluetooth while using the hair styling iron at high temperature is disclosed. The disclosed hair styling iron includes a circuit board with a built-in Bluetooth, a speaker, control button(s) and a rechargeable battery. Once the hair styling iron is paired with another Bluetooth device, the user can control certain function(s) of the connected Bluetooth device and also stream audio media from the connected Bluetooth device. The rechargeable battery provides power to the speaker and the circuit board when the hair styling iron is not connected to an alternative current (AC) power source.

An ultrasound hair care device (10) for drying and styling hair (20). An ultrasound unit (12-18) applies ultrasound to the hair (20). A hair moisture measurement unit (22) measures a moisture level of the hair (20). A control unit (24) controls the ultrasound unit (12-18) based on the moisture level. In accordance with the present invention, in dependence on the moisture level, ultrasound is applied to the hair (20) at a first frequency not exceeding 1 MHz for drying the hair (20), and/or at a second frequency of at least 1 MHz for styling the hair (20).

A hair curling device includes a hair curling mechanism including two pivot holes on left and right sides respectively; and a covering plate including two pivots on left and right sides respectively, the pivots being configured to insert into the pivot holes so as to pivotally secure the covering plate to the hair curling mechanism. The covering plate is configured to close or open the hair curling mechanism. When the covering plate is completely open, the hair curling mechanism is not covered by said covering plate.

A hair curling device includes a hair curling mechanism including two pivot holes on left and right sides respectively; and a covering plate including two pivots on left and right sides respectively, the pivots being configured to insert into the pivot holes so as to pivotally secure the covering plate to the hair curling mechanism. The covering plate is configured to close or open the hair curling mechanism. When the covering plate is completely open, the hair curling mechanism is not covered by said covering plate.

A hair drying device is provided. The hair drying device includes a housing having an air inlet and an air outlet, a power component, a heating element coupled to the power component, an audio component configured to receive audio input and convert the audio input into audio data, a controller in communication with the heating element and the audio component, and a memory configured to store instructions executable by the controller. The instructions, when executed by the controller, are operable to receive the audio data from the audio component, determine that the audio data corresponds to a style setting, and adjust the energy provided by the power component to increase or decrease the heat emitted by the heating element based on the style setting.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

In various embodiments, a hair treatment device is provided. The hair treatment device can have a device body, at least one sensor arranged in or on the device body for detecting a hair condition parameter, and an electronic circuit device arranged in or on the device body. The electronic circuit device can be coupled to the at least one sensor for receiving the detected hair condition parameter, and the electronic circuit device can be configured, based on the received detected hair condition parameter, to control at least one hair treatment parameter and/or to dose at least one hair treatment agent and/or to provide a hair treatment recommendation.

In various embodiments, a hair treatment device is provided. The hair treatment device can have a device body, at least one sensor arranged in or on the device body for detecting a hair condition parameter, and an electronic circuit device arranged in or on the device body. The electronic circuit device can be coupled to the at least one sensor for receiving the detected hair condition parameter, and the electronic circuit device can be configured, based on the received detected hair condition parameter, to control at least one hair treatment parameter and/or to dose at least one hair treatment agent and/or to provide a hair treatment recommendation.