Quality

Buy with clear product information

Compare verified specifications and real photos. Samples and independent inspection can be arranged before larger orders.

Product quality information

1

Model specification data

Compare output, Bluetooth version, battery, size, carton quantity and available colors.

2

Sample before a larger order

Order a paid sample when sound, appearance or packaging matters. Availability and freight are confirmed separately.

3

Independent inspection option

We can coordinate independent pre-shipment inspection. Scope, timing and fees are agreed before order confirmation.

Confirm market requirements before ordering

Certification: FCC / CE-RED / RoHS / UN38.3 available. In hand on selected models — please ask for the model you need; 4–6 weeks if a new certificate is required, cost shared on volume orders. We verify the exact model, hardware version and destination before confirming documents.

Before dispatch

What we check on every batch

Our team combines practical shipment checks with an audio-engineering background in DSP tuning and EQ calibration.

01

Power-on check

Sampling units are powered on and basic controls are checked.

02

Bluetooth pairing

Connection and normal playback are verified on sampled units.

03

Sound test

We listen for obvious distortion, channel or driver problems.

04

Quantity check

Carton quantities are checked against the confirmed order.

05

Packaging check

Outer cartons and product packaging are checked before handover.

HeavyBass BASS-11 Bluetooth speaker
Before you confirm

Put the key requirements in writing

Confirm the model, color mix, carton quantity, cable requirements, market and delivery terms. Request photos when small visual differences matter.

Every batch receives sampling, quantity and packaging checks. Paid samples and third-party inspection remain available when needed.

Start with clear specifications

Send the target models, quantities and market requirements for an FOB Shenzhen quote.