A variable diameter adjustable hair tool that includes a barrel with a number of plates. A heater included in the hair tool may transfer heat at a specified temperature to the plates. The heater may draw power from a power unit. The hair tool has a handle connected to the barrel that allows the user to hold the tool. The adjustable diameter is achieved by an actuator that alters the outer diameter of the barrel by changing the distance between a surface of the plates and a central axis of the barrel. The actuator may controlled by a control component that converts a user action into an action of the actuator. Other aspects are also described and claimed.

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 attachment for a hand held appliance comprising a body having a wall, a fluid inlet at one end of the wall and a fluid outlet through the wall wherein the fluid outlet comprises at least one slot extending along the wall and wherein the at least one slot is formed by an overlap of a first end of the wall and a second end of the wall. The wall may be formed from at least two plates. A first one of the at least two plates may comprise the first end of the wall and a second one may comprise the second end of the wall. The first of the at least two plates may define a radially inner surface of the slot. The second one of the at least two plates may define a radially outer surface of the slot. The slot may be tangential to the wall.

An attachment for a hand held appliance comprising a body having a wall, a fluid inlet at one end of the wall and a fluid outlet through the wall wherein the fluid outlet comprises at least one slot extending along the wall and wherein the at least one slot is formed by an overlap of a first end of the wall and a second end of the wall. The wall may be formed from at least two plates. A first one of the at least two plates may comprise the first end of the wall and a second one may comprise the second end of the wall. The first of the at least two plates may define a radially inner surface of the slot. The second one of the at least two plates may define a radially outer surface of the slot. The slot may be tangential to the wall.

A hair styling device (S), comprising a luminescent unit (LU) for subjecting hair (H) to optical radiation. Preferably, the luminescent unit (LU) is arranged to translate a first wavelength of light (Li) from a light source (L) into a second wavelength of escaping light (EL) escaping from the luminescent unit (LU). Preferably, light escapes from the luminescent unit (LU) where hair (H) touches the luminescent unit (LU). Preferably, the luminescent unit (LU) is provided with a scattering element. A refractive index of the luminescent unit (LU) may range from 1.3 to 1.7, preferably 1.3 to 1.42. Preferably, the luminescent unit (LU) provides for a plurality of treatment compartments. The hair styling device preferably comprises a handle having a light source (L) for coupling light (Li) into the luminescent unit (LU), and may be provided with a plurality of exchangeable luminescent units (LU) each adapted for a respective hair styling type, which exchangeable luminescent units (LU) are insertable into the handle.

A hair styling device (S), comprising a luminescent unit (LU) for subjecting hair (H) to optical radiation. Preferably, the luminescent unit (LU) is arranged to translate a first wavelength of light (Li) from a light source (L) into a second wavelength of escaping light (EL) escaping from the luminescent unit (LU). Preferably, light escapes from the luminescent unit (LU) where hair (H) touches the luminescent unit (LU). Preferably, the luminescent unit (LU) is provided with a scattering element. A refractive index of the luminescent unit (LU) may range from 1.3 to 1.7, preferably 1.3 to 1.42. Preferably, the luminescent unit (LU) provides for a plurality of treatment compartments. The hair styling device preferably comprises a handle having a light source (L) for coupling light (Li) into the luminescent unit (LU), and may be provided with a plurality of exchangeable luminescent units (LU) each adapted for a respective hair styling type, which exchangeable luminescent units (LU) are insertable into the handle.

A hair-setting tool for setting hair styles is specifically configured to exhibit an improved hair-setting effect with the aid of heat. The heat-enhanced hair-setting tool of the present invention includes one or more heating components in or on the main body of the hair-setting tool. The heat required for setting hair may be provided by the heating components and/or by heating or re-heating the hair-setting tool to activate the heating components.

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.

The invention discloses an adjustable hair curler, comprising a hair curling assembly which comprises a main body and at least two heating bodies, and an adjuster which comprises a connecting member, a connecting plate and a rotating member. An arc-shaped slot is provided on the rotating member, of which one end is arranged close to the center of the rotating member, the other end is arranged close to the edge of the rotating member. When the rotating member sleeved on the first protrusion which is provided on one side of the connecting plate rotates, the connecting member moves in the arc-shaped slot to drive the heating body to be close to or away from the main body. When the connecting member abuts against the arc-shaped slot's end part, a tight locking state is achieved, the hair curler's diameter cannot be continuously changed, the hair curler is convenient to use.

A portable and wearable hair styling device includes a headband configured to conform to a head of a user, a hair wrap attached to the headband, wherein the hair wrap includes a flexible inside layer, an air distribution network, and a flexible outside layer attached to the flexible inside layer creating an interior volume between the flexible inside layer and the flexible outside layer, wherein the flexible outside layer includes a hair dryer attachment and a clip configured to close a lower portion of the hair wrap around hair of the user.