The RMCE-BT1, Bluetooth Enabled Remote + Mic Accessory Cable for SE Model Earphones from Shure is a Bluetooth communication cable with MMCX connectors for the Shure SE215, SE315, SE425, SE535, and SE846 earphones (earphone not included.) It can be used to pair smartphones, laptops, and tablets to the earphones, withup to 8 hours of battery life, and 30' of range.The RMCE-BT1 accessory cable, with its three-button remote, offers audio for phone calls, voice commands, and other voice-activated device features. The built-in lithium polymer battery is also rechargeable and delivers up to 8 hours of listening on a full charge and 2 hours of listening on a 15-minute charge. A clothing clip stabilizes the wire for security and stability during exercise or travel.
In the box are all the standard necessities for a Bluetooth cable. No fancy presentation is needed. Inside is the cable, a clothing clip, and a charging cable (micro USB).
As I unwrap the RMCE-BT1, I notice it seems strong and durable. The cable itself seems a little long but I’m not sure how it will bother me once I wear it. The battery pack attached to the cable seems a bit bulky for my taste but the remote, which has three buttons, is a comfortable size and looks easy to use. I disconnect some Shure SE215s from their original cable and snap on the Bluetooth cable. Just like the original cable, there are small etched dots to show you where to line the cable up to the earphone. They click on easily. The stiff coating by the earphones wraps around my ears comfortably.
This cable, like the other Shure SE series, supports Bluetooth 4.1. I’m disappointed they don’t support aptX, the best Bluetooth codec out there right now, but I suppose I should wait to judge it until I try it. Regardless, the battery life is about 8 hours in total and when I turn the earphones on I hear a little voice tell me there are 6 hours remaining.
The Shure RMCE-BT1 Bluetooth Remote+Mic Cable easily connects to my phone. I just hold the center button on the remote which puts the earphones into “pairing mode”. Then they show up in the Bluetooth section of my settings. A symbol pops up at the top of my phone showing the battery life.
I placed my phone at the front of my office and began walking away to see how the Bluetooth cable would react. It had a surprisingly long range as I walked over 30 ft and around a corner before the signal started to break up. Impressive! Now let’s see how it sounds, especially compared to using a connected wire.
When I turned the cable on, I noticed a small, barely noticeable noise. I’m not sure if the noise is from the battery, but I know it is not there when I don’t use the Bluetooth cable. It is such a quiet noise that I don’t think most people would notice it, but for audiophiles and folks listening in a quiet environment, I figure it is worth mentioning. First, I’m listening to the SE215s. I’ve already listened with the original cable to see how it compares and I do notice a difference.
It seems like some of the dynamics are a little less distinct. The overall sound stage feels less clear, although it is subtle and I’m not sure I would notice it if I was trying to listen in a louder environment. I tried this method of listening on other SE earphones including the Shure SE315, SE535, and some Westone models including the W40 and W60. I found the same issues with all the earphones. There was less of a difference when I streamed music from Spotify, so it is possible there is a slight downgrade in quality using the RMCE-BT1 if you want to listen to bigger files.
Overall, I’m left wishing the Shure RMCE-BT1 Bluetooth Remote+Mic Cable supported aptX. But I think it is a nice product generally. It is an affordable way to convert your wired earphones into Bluetooth earphones. The cable is durable and is easy to use.