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| Regional areas: | 3-4 business days | 
| Remote areas: | 3-5 business days | 
(PRELOVED EARPHONES, OPENED BOX)
Features:
Newly upgraded sliding charging compartment, gently push to open, work decompression slide a slide, dynamic listening to songs to soothe the mood
   Large-capacity charging compartment with low-power Bluetooth chip, strong, as always, to accompany you more than night and day
   Innovative LEDE screen digital design, fashionable and innovative appearance, more direct view of the three screens, power, intuitive and accurate display, no need to open the cover inside and outside the visual
   Optimized Type-c charging jack, charging more efficient, while the distribution of charging cable, more convenient to carry out
   Single / binaural mode easily switch, pick up any one can listen, left and right ears, are the host, after the first connection, use again to open the cover can be a second flash connected
   Compatible with IOS and ANDROID system, also supports the PC side, a headset to go around the world
   A new generation of Bluetooth 5.3 technology, faster and more stable transmission, lower power consumption
   Three-layer composite structure acoustics, taking into account the rich vocal details, as well as solid bass, precision acoustic measurement system, true restoration of the beauty of sound
Specification:
   Model: M90
   Standby time: 140 hours
   Use time: 4-5 hours
   Charging capacity: 1200mAh
   Transmission distance: 15m
   Wearing style: In-ear wearing
   Bluetooth version: Bluetooth 5.3
   Charging time: 1-2 hours
   Headset capacity:40 mAh
   Material: ABS
   Electrical compartment size: about 7.5 x 6.6 x 3cm
   Sound channel: stereo
   Whether single binaural: bilateral stereo