Abstract: A keyless control device is provided, wherein the first infrared sensor module generates an infrared trigger signal when the earphone is in a wearing state; the Bluetooth controller generates enable signals according to the infrared trigger signal, and the left-ear infrared sensor module generates a first detection signal according to a first enable signal; the right-ear infrared sensor module generates a second detection signal according to the second enable signal; the left-ear acceleration sensor module generates a third detection signal according to the third enable signal when detecting that the left-ear component is knocked; the right-ear acceleration sensor module generates a fourth detection signal according to the fourth enable signal when detecting that the right-ear component is knocked; and finally, the Bluetooth controller performs the functions according to the detection signals.

Abstract: The present application discloses a headset, the headset includes a headband; and two earphones respectively connected to two ends of the headband and including: an earphone housing connected to an end of the headband; an earmuff provided therein with a sounder; and a universal adjuster connected between the earphone housing and the earmuff and configured to arbitrarily adjust the earmuff relative to the earphone housing. The headset improves the fit of the earmuffs and the human ears, and improves the comfort when wearing.

Abstract: The present application is applicable to the field of smart terminal technologies, and a Bluetooth connection method and device and a smart terminal are provided. The method includes: searching, by a terminal device, for a dual-mode Bluetooth device and establishing a connection relationship in a first Bluetooth mode with the dual-mode Bluetooth device; obtaining identification information of the dual-mode Bluetooth device; and establishing a connection relationship in a second Bluetooth mode with the dual-mode Bluetooth device according to the identification information.

Abstract: An audio signal processing device, including: a digital signal processing module, an input module, an output module, and a control module. The digital signal processing module is in connection with the input module and the output module, and the control module is in connection with the output module. The output module includes at least two output channels, with each output channel including a power amplifier and a speaker in series connection. The digital signal processing module is configured to receive an audio signal output by the input module and to process the audio signal with at least two different audio processing algorithms, and output the at least two audio processing signals. Each audio processing signal corresponds to one output channel. The control module is configured to control the operation state of the power amplifier of each output channel and the magnification thereof in operation.

Abstract: A touch Bluetooth headset includes a housing, a touchpad, a main board, a Bluetooth antenna, a first thimble and a second thimble. The touchpad is a flexible touchpad, the main board and the touchpad are opposite and fixed on the housing, and the touchpad is provided with a plurality of metal contacts. The first thimble and the second thimble have one end fixed to the main board and other end extending toward the touchpad and abutting against the metal contacts. The Bluetooth antenna is laid on the touchpad and connected to the metal contacts. The touch Bluetooth headset may be designed to be more miniaturized; additionally, an additional Bluetooth antenna is added in the touchpad and the Bluetooth antenna is jacked up by the above thimbles, which reduces the electromagnetic shielding, thereby the micro Bluetooth headset has a better signal transmission distance.

Abstract: A Bluetooth sport earphone, including a left earphone and a right earphone and a controller. The controller comprises a casing, a main control circuit board, a battery and a Bluetooth module, the Bluetooth earphone further includes a left wire, a right wire and a cable antenna electrically connected to the main control circuit board; the cable antenna is mounted on at least one of the casing, the left wire and the right wire. The present application provides a cable antenna, and the cable antenna is mounted in the casing, or/and the left wire, or/and the right wire, which can facilitate the arrangement of the cable antenna and determine the size, length and arrangement position of the antenna, such that the stability and intensity of the signal transmitting is improved, and the signal intensity of the wireless communication of the Bluetooth earphone is improved, and the communication stability is ensured.

Abstract: The present application relates to the technical field of communication, and provides a method and device for controlling camera shooting, a smart device, and a storage medium, including: recognizing whether or not a voice contains a keyword when the voice is detected; determining a sound source angle of a sound source object sending the voice if the voice contains the keyword; controlling the camera to turn according to the sound source angle of the sound source object sending the voice, such that the sound source object sending the voice is located within an image shooting range of the camera. In this way, preventing the camera from turning frequently when multiple people are speaking at the same time and causing shaking.