ITEM NAME:Stereo Headset Case Storage Box fit for JBL Synchros E50BT Slate S500 S700 hf Case Storage Box Fit for JBL Synchros E50BT S500 S700 Bluetooth On-ear Headphones Headset SPECIFICATIONS.(Case Storage Box Fit for JBL Synchros E50BT S500 S700 Bluetooth On-ear Headphones Headset. Compatible With: fit for JBL Synchros E50BT S500 S700 Bluetooth on-ear headphones. 2) Hard case, dustproof and shock resistant, press resistant.