Pryme EH-1013X 30 3.5mm Threaded Acoustic Tube Listen Only Earpiece with Straight Cord auspowers_batchfour Size of screw thread taps:

Size of screw thread taps: M3*0

Special Function:The item will only blink when it is dark

Comes with an anti-shake stabilizer

Compatibility: 3-in-1 3A High Speed retractable charger cord compatible with iP

Pryme EH-1013X 30 3.5mm Threaded Acoustic Tube Listen Only Earpiece with Straight Cord auspowers_batchfour Size of screw thread taps:Pryme EH 1013X 30 3. 5mm Threaded Acoustic Tube Listen Only Earpiece with Straight Cord The Pryme EH 1013X RECON listen only earpiece provides comfort and privacy during radio communications. The RECON series is a surveillance style, listen only acoustic tube earphone that allows you to privately and comfortably monitor incoming communications. Compatible with speaker microphones with threaded 3. 5mm earphone jacks. Product Features Durable design