3.5mm Earphone Splitter 2 Male to Female $5.70, 2 Female to Male $5.96+Delivery ($0 Prime/ $39+) @Statco Amazon AU

1.T Tersely 3.5mm Headset Earphone Splitter Headphone Jack Adapter 2 Male to Female Y Splitter Adapter Cable with Separate Microphone and Headphone Connector

Original Price: $7.95

Now Price: $5.70 please check on the 15% coupon

link:amazon.com.au

Details:
* 3.5mm headset splitter cable, 4-pole female socket to 2*3-pole male plug(earphone and microphone). Connect the male plug to your device, and plug your headset/earphone to the female pole. (Kindly please noted that the Mic wouldn’t work if it’s used for iPhone or Beats earphone)
* Suitable for four-pin gaming headset in CTIA audio jack standard (audio & microphone) to a tablet, notebook or PC with separate microphone and headphone connectors.
* 24K GOLD PLATED TERMINALS: Gold plated connector terminals resist corrosion and ensure optimum sound quality.
* Connect your newer headsets (audio & mic) to a PC or old version Laptop with a combo audio port for online gaming or use with VOIP applications (Skype, chat programs).
* Please be kindly noted that it's only compatible with CTIA standard Android headphones, do NOT compatible with CTIA standard Apple or Beats Earbuds.

2.T Tersely 3.5mm Headset Earphone Splitter 2 Female to Male, Stereo 3.5mm Y Splitter Cable Adapter (Double Female 3 Pole to Single Male 4 Pole)

Original Price: $7.95

Now Price: $5.96 please check on the 25% coupon

Link:amazon.com.au

Details:
* Splits the 4 contacts TRRS 3.5mm headphone / microphone plug into two separate ports - a TRS 3.5mm headphone jack and a TRS 3.5mm microphone jack. (Please notice: a jack for mic and a jack for audio of one headphone, NOT 2 headphones)
* Seperate Audio and Microphone Plugs: Turns a 3.5mm combo headphone/microphone port into two distinct ports - one 3.5mm headphone jack and one 3.5mm microphone port, allowing you to connect an external speakers/headphone and microphone to your PC, laptop, tablets or android smartphones with a single 3.5mm 4pin combo port
* Ideal to connect the headphones / speakers (not suitable for iPhone earphones) and the external TRS microphone with a four-pole TRRS jack.
* 24K GOLD PLATED TERMINALS: Gold plated connector terminals resist corrosion and ensure optimum sound quality.
* Small design provide convenience for carrying, easy to use and intall

3.T Tersely Dual USB C Headphone Adapter, 2 in 1 USB Type C Earphone Audio PD Charge Cable Jack

Original Price: $15.95

Now Price: $10.36 please check on the 35% coupon

Link:amazon.com.au

Details:
*【Hi-Fi/Realtek Chip】: Equipped with Realtek chipset, offer supreme noise cancelling technology, play music with high rate, high resolution and lower noise. Besides, this updated adapter has high quality output 24 bit/ 96 KHz, give you original sound experience, you can enjoy your music completely!
*【Wide Compatibility】:Dual USB-C adapter can work with Samsung Galaxy S21/S20/S10 Series, Note 10, Google Pixel 4/4 XL/3/3/2 XL,Huawei Mate 10 Pro/Mate20 Pro/Mate Rs /P20/P20 Pro/P30/P30 Pro,Xiaomi 8/8 SE/6/MIX 2S/MIX2/note 3,Samsung Note 10/A8S,HTC U11+/U Ultra,SONY Xperia XA2 Ultra/ Xperia XZ2,iPad Pro. Unlike other products, TERSELY adapters support calls when you connect with iPad Pro / iPad Air 4 as well as other compatible phone models.
*【Listening & Powering Sync】:Equipped with DAC chipset, this dual USB-C connector offers supreme noise cancelling technology, play music with high rate, high resolution and lower noise. Besides, this updated adapter has high quality audio output, making it possible to bring all of the thrill and excitement of pure, living sound directly to your ears.
*【PD Charging】:Support PD Charging. Max Output: 5V / 3A.
*【HANDY SIZE】: Size: 10.5 x 2.8 x 0.8cm. TERSELY Type C headphone jack is small and compact, allowing you to stow it away in a small pouch or backpack. It features a sturdy cord and a flexible TPE body.