The Design Delta设计三角洲

Field guide · 2026 · Pearl River Delta · 珠三角

Who designs
what.谁来设计

China doesn't design everywhere. It designs somewhere specific.

Most hardware isn't drawn from scratch. You go to a house that already owns the reference platform and the factory relationships, and you bring the brand. This is a practical field guide to those houses across the Pearl River Delta, who designs what, product by product, where they cluster, and how to reach them.

01 / The products

The products

Fourteen to start. Each opens to the industry behind it and the houses that own the design, in detail, with direct contacts.

HRM
Heart Rate Monitors 心率监测

The sensor behind the strap. ECG chest belts and optical armbands, ANT+ and BLE, a tight Bao'an sub-cluster in Shenzhen.

3 houses · Shenzhen
AUD
Earbuds & Headphones 耳机音频

The chipset is the reference design. TWS, ANC and gaming headsets across the Shenzhen-Dongguan-Huizhou audio corridor.

4 houses · SZ · DG · HZ
SPK
Bluetooth Speakers 蓝牙音箱

A driver, an amp and a box around the same audio chipset. Outdoor boomboxes, party trolleys and pool floaters, the layer beneath JBL and Soundcore.

4 houses · Guangzhou · SZ
MIC
Microphones 麦克风

A capsule plus a chain to carry what it hears. USB studio mics, 2.4G wireless lavaliers and UHF stage systems, where Enping and Shenzhen design for everyone.

4 houses · Enping · SZ
SWT
Smartwatches 智能手表

RTOS and Android, PPG and GPS and ECG. From kids GPS watches to medical-grade rings, the wearable layer beneath the brands.

4 houses · Shenzhen
PWR
Power Banks & GaN Chargers 充电与电源

The cell plus the power IC, and for GaN the power transistor. Tiny high-watt chargers and wireless banks, the layer beneath Anker and UGREEN.

4 houses · SZ · Foshan
LCK
Smart Locks 智能门锁

Mechatronics plus credentials plus a cloud, on one door. Fingerprint, 3D face and RFID on Tuya or TTLock, the layer beneath Kaadas and Dessmann.

4 houses · Zhongshan · SZ · Foshan
PAY
Payment Terminals 支付终端

SmartPOS, PIN pads and EFT-POS. Home to two of the world's largest terminal makers, the moat is the certified secure platform, not the plastic.

3 houses · Shenzhen · Foshan
ETB
Electric Toothbrushes 电动牙刷

Sonic and maglev drives, IPX7, induction charging. The manual brush belongs to Yangzhou, the electric one is designed in Shenzhen.

4 houses · Shenzhen
MKS
Mechanical Keyboard Switches 机械轴

Four parts around the Cherry MX cross-stem, free since Cherry's patent lapsed. Linears, tactiles and magnetic rapid-trigger, the layer beneath Cherry and Keychron.

4 houses · Dongguan · Huizhou
KBD
Mechanical Keyboards 机械键盘

Switches dropped into a PCB, plate and case. Gasket customs, hot-swap gaming boards and magnetic rapid-trigger, from Akko and RK down to white-label OEMs.

4 houses · Dongguan · SZ
MSE
Computer Mice 鼠标

Built around a PixArt sensor, raced on grams and hertz. 8K-polling ultralights and office combos, the layer beneath Logitech and Razer.

4 houses · SZ · Dongguan · Guangzhou
ACAM
Action Cameras 运动相机

A Sony sensor and an ISP, in a waterproof shell. Budget GoPro alternatives and body cams, the layer beneath DJI, Insta360 and GoPro.

4 houses · Shenzhen
DRONE
Drones 无人机

A flight stack, a gimbal and a radio link around one airframe. FPV, agriculture and survey, the niches DJI's shadow doesn't cover.

4 houses · SZ · Guangzhou

More products to follow. Each is added the same way: a specific product, the houses that own its design, verified, located and contactable.