Company Pioneer in the beginning of year released whole series of headphones of different types, among them there are in-ears SE-CL541i with 10 Hz – 24 kHz frequencies range. Their sensitivity is 108 dB, impedance 16 Ohms and maximal imput power is 100 mW. Membrane diameter is 10.5 mm, cable length is 1.2 m with microphone and smartphones control buttons, compatible with Apple devices, in volume control module; to signal source they are connected via 1/8″ mini-jack with gold-plated contacts; cable is reinforced with polymer for better toughness and entanglement prevention, it also has clip for comfortable connection to clothes. Device mass is 7 g; package contains : Pioneer SE-CL541i headphones themselves, 2 sets of 4 interchangeable heads, carrying and storage case, warranty card and user’s guide. Device is quite good for in-ears headphones, but its price is quite big at launch time : around 40 USD, probably, after some time it will go down and they’ll become more acceptable; in the meantime there is ability to look on other headphones of different types of this one and other manufacturers.