Brand Name: oein
Style: In-ear
Certification: NONE
Vocalism Principle: Dynamic
Origin: Mainland China
Control Button: No
Active Noise-Cancellation: No
Communication: Wired
Volume Control: Yes
Brand Name: oein
Style: In-ear
Certification: NONE
Vocalism Principle: Dynamic
Origin: Mainland China
Control Button: No
Active Noise-Cancellation: No
Communication: WIRED
Volume Control: Yes