RM-B1

Up to 9 hours of playtime, you can enjoy music throughout workout
Magnetic earbuds in behind-the-neck style provide extra secure fit
With Bluetooth 4.1 chipset, it is compatible with most digital devices
APT-X lossless codec reveals audio as great as CD level
Tilt in-ear earbuds deliver comfortable wearing experience
Various statuses are prompted by user-friendly vibration


  • CSR8645

  • V4.1

  • 100mAh

  • 6h

  • 4h-9h

  • 6h

  • 200h

  • DSP

RM-B2

Magnetic earbuds
Ergonomic shark fin stabilizer
$ 12mm dynamic driver offers extensive and vibrant bass
8 hours of music time


  • WT200S

  • V4.2

  • 90mAh

  • 6-7h

  • 5-5h

  • 2h

  • 180h

  • DSP

RM-B3

Independent sound cavity
$10mm neodymium magnet driver gives strong bass
CVC6.0 noise cancelling & APT-X support
IPX4 Sweatproof & waterproof


  • CSR8645

  • V4.1

  • 100mAh

  • 7h

  • 6h

  • 1h-2h

  • 200h

  • CVC6.0

RM-B4

Magnetic switch
Magnetic earbuds enables it to be a necklace right away
As easy as one press to play/pause music
Join/separate two earbuds to answer/end a call


  • CSR8645

  • V4.1

  • 90mAh

  • 6h

  • 5.5h

  • 1-2h

  • 180h

  • CVC6.0

RM-B5

14g body delivers ultra-light and comfortable wearing experience
10mm drivers provide perfect ambiance
Behind-the-neck style makes it stable even in vigorous exercise
Apt-X reproduces sound as great as CD level


  • CSR8645

  • V4.1

  • 90mAh

  • 6h

  • 5h

  • 2h

  • 160h

  • CVC6.0

RM-B6

Super light body
Ergonomic shark fin stabilizer
CVC6.0 noise cancelling & APT_X support
IPX4 Sweatproof & waterproof


  • WT200

  • V4.2

  • 90mAh

  • 4h

  • 6h

  • 1-2h

  • 155h

  • DSP

RM-B7

Evolved edition of QY7
7 Hours of Playback
Tilt-in Ear Design
APTX Supported


  • CSR8645

  • V4.1

  • 80mAh

  • 5h

  • 7h

  • 1-2h

  • 175h

  • CVC6.0

RM-B8

Monumental Item
Large Diagram
APTX Support


  • CSR8645

  • V4.1

  • 80mAh

  • 5h

  • 7h

  • 1-2h

  • 175h

  • CVC6.0