1pc 3.5mm Female Stereo To 2.5mm Male Headphones Headset Aux Adapter Converter Cable 25cm - Audio & Video Cables - AliExpress
Wired Mono Headset, 2.5mm Headphone Earphone w Mic - ACC37
Amazon.com: 2.5mm Jack Headset with Microphone + Volume Mute Control for Telephone Panasonic Cordless Handset Phone, Cisco Spa303 Spa504 Series, Polycom Soundpoint IP, Panasonic KX and More (Mono-2.5mm) : Electronics
Amazon.com: Phone Headset with 2.5mm & 3.5mm Connector for Deskphone Cell Phone PC Laptop, CallCenter Office Headset with Microphone Noise Canceling for Panasonic AT&T Vtech Cordless DECT Phone for Polycom : Electronics
Spracht ZUM Stereo 3.5 mm and 2.5 mm Jack Headset - Wired, Boom Microphone, On-ear, Mono Sound Output Mode, Volume, microphone on/mute Controls, Black - ZUM350M at TigerDirect.com
IPN Entry-level 2.5/ 3.5mm Monaural Headset w/ Noise-canceling Mic (IP – Global Communication
Phone Headset 2.5mm with Microphone Noise Canceling | Ubuy India
Harris XL-185 Tactical Behind the Head Headset 2.5mm – Waveband Communications
Wired Black Vonia DH-101 Mono 2.5 mm Headset, Model Name/Number: Dh-101d 2.5mm at Rs 2500 in New Delhi
HDST-25MM-PTVP-01 | Zebra Headset for Zebra MC40, Mono, On-Ear Ear-Hook, Mono Jack Plug 2.5 mm, Black | Distrelec International | Electronic Components Distributor
Universal Premium Mono 2.5mm Hands-Free Headset with Boom Microphone for landline phone, cordless phone, office phones, business phones by Cellet (Not for Smartphone) - Walmart.com