HWAYO 3.5mm Listen Only Surveillance Earpiece for Two-Way Radios, Transceivers and Radio Speaker Mics Jacks Technical Details: Earpiece: Sensitivity: 84dB Impedance: 32ohm Frequency response:20-20KHz Speaker: Speaker size: 16mm Frequency response: 200-5000 Hz Sound pressure level: 90dB±3dB Impedance: 90 Ω ±10% Audio output: 100mW Adjusts to fit either the left or right ear. Designed for high noise level environments and discrete listening. This all-black swivel earpiece for Motorola Walkie Talkie makes a savvy statement that sets you apart. It's the perfect accessory for busy professionals. Middle part coiling design, recommend used in the above the waist position, especially for shoulder speaker microphone or two-way radio carried near the shoulder and chest. Compatible for Kenwood speaker microphone models Number: KMC-25 KMC-26 KMC-70 KMC-72 TK-208 TK-220 TK-240 TK-248 TK-250 Compatible for Motorola models number: PMMN4013A PMMN4029 PMMN4015A PMMN4021A PMMN4022A PMMN4074 PMMN4024A PMMN4075 PMMN4076 PMMN4075 NMN6154B NMN6128C CP200 CP200 XLS GP300 EP450 PR400 HMN9030 PMMN4050 PMMN4059 PMMN4069 RLN4941 Works with the devices: Any MOTOROLA / KENWOOD / ICOM radio, remote mic, and speak mic with a 3.5mm earphone jack. This HWAYO 3.5mm Listen Only Earpiece with Acoustic Tube compatible with many Motorola radio devices Series. 60 days warranty and 30 day return with no questions asked, let's click 'Add to Cart' and buy it now! Package included: 1 Pcs HWAYO Walkie Talkie Swivel Earpiece Black Note: If the brand/model for your radio walkie talkie headset isn't listed, please contact us to confirm the compatibility.