True wireless earbuds and their charging case: two radio products, two battery packs, one coordinated certification plan.
A TWS product is really three devices sold in one box: two earbuds (each with its own radio and battery) and a charging case. Certifications must cover all three, and the earbuds add a body-worn RF exposure question that speaker-style products never face.
India has become the market that surprises TWS brands most: wireless earbuds are covered by BIS mandatory registration, and the paperwork cannot be started at the airport.
| Market | Typical requirements | Notes |
|---|---|---|
| United States | FCC ID certification for the Bluetooth radios (buds); charging case EMC under Part 15 Subpart B where applicable; UN38.3 | Both buds are covered within one grant when identical - declare the pairing architecture clearly |
| European Union | RED: radio per EN 300 328, body-worn RF exposure evaluation, safety per EN 62368-1 framework, RoHS | Charging case with wireless charging adds a wireless power assessment |
| India | BIS mandatory registration covers wireless earbuds | Registration must be in place before customs clearance |
| Battery & transport | UN38.3 for each battery (buds and case); cell safety per IEC 62133-2; KC 62133 for Korea | Tiny packs, full documentation - size does not exempt anything |
Preparing a TWS launch across the US, EU and India? Send the product architecture (buds + case) and market list - we will build the full certification plan including the charging case.
Identical left/right buds are typically covered under a single certification where the radios are identical; the architecture must be declared and documented. Asymmetric designs or different radio configurations change that answer.
Not classic head SAR in most cases - Bluetooth-only earbuds at low power are usually handled through RF exposure evaluation routes. But the evaluation must reflect the actual wearing distance, and devices with additional radios (or higher power) may trigger a different assessment. Confirm the route before testing.
It is a product in its own right: it has electronics (EMC), possibly a wireless charging function, and a battery needing UN38.3. Listing only the buds in the test plan is a common cause of scope changes.