Driver configuration
10 mm + 7.8 mm dynamic
Findings from published sources
The Truthear Zero:RED is a dual dynamic driver in-ear monitor for listeners who want warm, full-bodied bass without losing vocal clarity.
It ships with a detachable 0.78 mm 2-pin cable, silicone eartips in S, M and L in thick and thin bores, and a pair of M foam tips. The 10 mm and 7.8 mm drivers cover 20 Hz to 40.5 kHz, and at 17.5 Ω and 117.5 dB/Vrms it reaches full volume from a phone dongle.
The 2-pin fitting means the cable can be replaced later.
10 mm + 7.8 mm dynamic
0.78 mm 2-pin
S / M / L (thick and thin) + M foam
Zero:RED is a dual-dynamic wired IEM tuned for warm, balanced listening. TRUTHEAR publishes a 10 mm + 7.8 mm driver system, a detachable 0.78 mm 2-pin cable and an optional 10 Ω impedance adapter. SoundGuys found the stock tuning bassier than its preference curve but comfortable and easy to drive for most sources; RTINGS found stable fit and accurate reproduction, while noting weak low-frequency isolation and no microphone.
Unboxing
A short product-specific look at the item, filmed from the same stock we ship.
| Compare | This product Zero:RED ₱3,019.00 · Available | Zero ₱2,799.00 · Available | Hexa ₱4,499.00 · Available |
|---|---|---|---|
| Driver configuration | 10 mm + 7.8 mm dynamic | 10 mm + 7.8 mm dynamic | 1DD + 3BA |
| Frequency response | 20 Hz–40.5 kHz | 20 Hz–39.5 kHz | 8 Hz–40 kHz |
| Impedance | 17.5 Ω ±15% @ 1 kHz | 10 Ω ±15% @ 1 kHz | 20.5 Ω ±15% @ 1 kHz |
| Sensitivity | 117.5 dB/Vrms @ 1 kHz | 117.5 dB/Vrms @ 1 kHz | 120 dB/Vrms @ 1 kHz |
| Connector | 0.78 mm 2-pin | 0.78 mm 2-pin | 0.78 mm 2-pin |
| Best for | Warm balanced tuning with optional bass adapter | More energetic original Zero tuning at the lowest price | More detailed treble and a hybrid-driver step-up |
10 mm + 7.8 mm dynamic 10 mm + 7.8 mm dynamic
20 Hz–40.5 kHz 20 Hz–39.5 kHz
17.5 Ω ±15% @ 1 kHz 10 Ω ±15% @ 1 kHz
117.5 dB/Vrms @ 1 kHz 117.5 dB/Vrms @ 1 kHz
0.78 mm 2-pin 0.78 mm 2-pin
Warm balanced tuning with optional bass adapter More energetic original Zero tuning at the lowest price
10 mm + 7.8 mm dynamic 1DD + 3BA
20 Hz–40.5 kHz 8 Hz–40 kHz
17.5 Ω ±15% @ 1 kHz 20.5 Ω ±15% @ 1 kHz
117.5 dB/Vrms @ 1 kHz 120 dB/Vrms @ 1 kHz
0.78 mm 2-pin 0.78 mm 2-pin
Warm balanced tuning with optional bass adapter More detailed treble and a hybrid-driver step-up
Standardized illustrations · verified contents
Names and quantities are checked for the variant sold here. Nothing is listed that is not confirmed included.
| Driver configuration | 10 mm + 7.8 mm dynamic |
|---|---|
| Driver count | 2 |
| Frequency response | 20 Hz–40.5 kHz |
| Impedance | 17.5 Ω ±15% @ 1 kHz |
| Sensitivity | 117.5 dB/Vrms @ 1 kHz |
| Connector | 0.78 mm 2-pin |
| Eartip sizes | S / M / L (thick and thin) + M foam |
Published by the manufacturer. View the source page, read 10 August 2026.
Independent evidence
SoundGuys found the earphones comfortable and easy to drive for most sources, with stock bass above its preference curve and an optional adapter for more bass.
Drawbacks noted: The nozzle measured 6 mm, which can be large for small ear canals; there is no microphone, isolation is limited, and no water-resistance rating is published.
RTINGS measured stable in-ear fit and accurate reproduction, and directly compares Zero:RED with the original Zero and Hexa.
Drawbacks noted: Low-frequency isolation is weak and the wired stock cable has no microphone; there is no active noise cancellation.
All orders are dispatched from our warehouse in Valenzuela, Metro Manila, and we deliver nationwide. Shipping is charged per order on the total weight of the parcel and the exact amount is shown at checkout before you pay.
Standard nationwide delivery is handled by J&T Express. Estimated transit time after dispatch: Metro Manila 1–3 days, Luzon 1–5 days, Visayas and Mindanao 3–7 days, island destinations 5–6 days. Transit times are courier estimates, not guarantees.
Orders placed before 2:00 PM are dispatched the same day; orders after 2:00 PM go out on the next warehouse day. The warehouse runs Monday to Saturday, so an order placed after 2:00 PM on Saturday is dispatched on Monday.
Express Shipping – Metro Manila is ₱250 for parcels up to 20 kg, delivered by Lalamove, and appears at checkout for Metro Manila addresses. It follows the same 2:00 PM cut-off.
Orders over ₱500 qualify for free standard shipping, applied automatically at checkout.
Free shipping applies to standard rates only. It does not apply to Express Shipping – Metro Manila (₱250), which is charged in full at any order value.
Our warranty covers manufacturing defects with a full replacement policy, valid for 3 months from the date of purchase. The product packaging and all included accessories must be intact.
The warranty does not cover physical damage from mishandling, unauthorized modifications or repairs. We offer replacements or store credit for items of equivalent value, and in some cases replacement parts such as cables free of charge.
To start a claim, message us on our Facebook page. If we approve a warranty return we pay the return shipping, provided the item is sent back via J&T Express.
An order can be changed or cancelled any time before it is fulfilled. Message us on our Facebook page with the order number and we will confirm.