Full seal packaging. Non-bulk comparable.
The default is disassembled to listen to it, because this earplug is produced in more than ten years, the years have passed, it is inevitable to have a bad product, avoiding it without having to have trouble, by default, listen to everyone, if you don''''''''''''''''''''''''''''''''t need to listen, there is a problem to be self-contained . The gentleman agreed.
Black and gray versions, it is recommended to buy 2 pairs. The collection is also very good.
Long short-term, long line approximately 1.35 meters, short-term approximately 1.2 meters elbow.
Warm color, simulating sound, heavy bass.It is not a legendary plug, the price is 1,80 yuan. Time has passed many years, now 55 yuan a box. First come first served. Global out of print box, non-bulk and fakes.![](https://img.alicdn.com/imgextra/i1/2806584897/TB2Pxtoox6I8KJjSszfXXaZVXXa_!!2806584897.jpg)
【product description】: This Panasonic RP-HV278 earphones headset. Panasonic patented XBS ultra-low sound technology. The CCAW voice coil, the copper-clad aluminum wire is turned, so that the impedance of the high and low frequency signal is balanced, and the pronunciation unit is more balanced in the audio domain and frequency. CCAW''''''''''''''''''''''''''''''''s voice coil plus high-intensity of the magnet, which makes the unit have higher analytical force. Special earphone storage box.
【model】: Rp-hv278
【Unit diameter】: 14.8 mm
【impedance】: 16Ω
【Maximum input power】: 50MW
【Sensitivity】: 104 DB / MW
【Frequency Range】: 10 Hz - 25 kHz
【weight】: 6g
【Line length】: 1.1M
【Plug type】: 3.5mm 24K gold-plated plug
![](https://img.alicdn.com/imgextra/i4/2806584897/TB2Fui1ox6I8KJjy0FgXXXXzVXa_!!2806584897.jpg)
Panasonic headphones, especially flat plugs, are models in the earphone! It has high-end status in the Japanese headset, and it is also the object of the vast enthusiast! Early flat plugs are now many headphones can''''''''''''''''''''''''''''''''t match, seemingly appearance of simple headphones, in sound quality, workmanship is quite good! I don''''''''''''''''''''''''''''''''t do dozens of headphones, it can be sure, there is no longer selling again! Headphones are not expensive, you can start a listener and feel the early stuffes.![](https://img.alicdn.com/imgextra/i1/2806584897/TB2Pxtoox6I8KJjSszfXXaZVXXa_!!2806584897.jpg)
![](https://img.alicdn.com/imgextra/i2/2806584897/TB2ZgFaoxTI8KJjSspiXXbM4FXa_!!2806584897.jpg)
![](https://img.alicdn.com/imgextra/i4/2806584897/TB2291roxPI8KJjSspoXXX6MFXa_!!2806584897.jpg)
![](https://img.alicdn.com/imgextra/i2/2806584897/TB2GWFeotbJ8KJjy1zjXXaqapXa_!!2806584897.jpg)