SONY Float Run adopts a lightweight and exquisite design with ear-hooks and back-hooks, providing an easy and convenient wearing experience. In terms of functional configuration, SONY Float Run (Sony WIOE610/B) is equipped with a 16mm driver unit, adhering to Sony’s classic tuning features, so as to take into account both open-ear and good sound, so that users can fully enjoy good sound quality during exercise.

SONY Float Run supports hands-free calls and has a clear voice call effect. Support IPX4 waterproof, don’t worry about splash, sweat or rain. The headphones last for about 10 hours of continuous playback and about 200 hours of standby time. Support fast charging, charging for 10 minutes can play music for about 60 minutes.

We have also teardown the Sony’s headphones before, including: Sony LinkBuds S, Sony LinkBuds, Sony WF-1000XM4, Sony WF-XB700, Sony WF-H800, Sony WF-SP900, Sony XPERIA Ear Duo. Let’s take a look at the detailed teardown report of Float Run.

SONY Float Run headphones teardown

Remove the left ear-hook cavity cover. A battery unit is provided inside.

The inner structure of the cover plate is provided with a sponge pad to fix the battery and play a role of cushioning and protection.

The battery cell structure inside the cavity.

The internal structure of the cavity after taking out the battery. The battery and wires to the right earhook connect to the adapter plate.

The circuit on one side of the adapter board, the wires are soldered to the small board.

Information on the battery label, rechargeable lithium-ion battery pack, model: 421038, rated voltage: 3.7V, rated capacity: 130mAh 0.48Wh, charging limit voltage: 4.2V.

Tear off the external label and insulation protection, and the silkscreen information on the internal cell is consistent with the external label.

The lithium battery protection IC with 71 AI screen printed on the battery is responsible for the overcharge, overdischarge, overcurrent and other protection functions of the battery.

Silk screen 49B 225 MOS tube.

Open the inner structure of the sound unit cavity.

The internal structure of the rear cavity, the inner side of the tuning hole is covered with a fine dust-proof net to prevent foreign matter from entering the sound cavity.

The internal structure of the front cavity, the cavity is fixed with the earhook by brackets and screws.

Remove the screws, remove the front cavity, and take out the speaker.

The front diaphragm of the dynamic speaker inside the headphone.

Dynamic driver back magnet.

After actual measurement, the size of the dynamic driver has reached 16.10mm.

Open the cavity of the right earhook, and the motherboard unit is arranged inside.

The internal structure of the cavity, the main board is fixed by buckles. The lower microphone is sealed in a separate cavity and connected to the motherboard by wires.

Take out the motherboard and speaker unit.

The bottom structure of the cavity and the function buttons adopt an integrated design.

One side circuit of the headphone motherboard.

The circuit on the other side of the headphone motherboard.

Realtek RTL8763BFS bluetooth Audio SoC. The RTL8763B series is a single-chip bluetooth ROM audio solution that supports up to Bluetooth 5.3 protocol. Built-in 32-bit ARM processor, 24-bit DSP, operating frequency up to 160MHz. Built-in 8Mbits Flash memory, reducing PCB area.

Realtek RTL8763B has built-in lithium battery charging management, overvoltage, overcurrent, undervoltage protection and other battery protection devices. In terms of scalability, it supports three-way LED drive, touch IC control, analog and digital microphone input. It also supports dual microphones and has a binaural call function.

The peripheral power inductor of the bluetooth chip supplies power to its internal circuit.

Ceramic bluetooth antenna for wireless signal transmission.

Antenna test switch.

The micro button on the main board is used for function control. The three buttons use the same specification.

The 40.000MHz crystal oscillator provides the clock for the bluetooth chip.

Silk screen 205 IC.

Silkscreen KPE 140 IC.

The front pickup hole of the electret microphone of the headphone.

SONY Float Run open-ear bluetooth sports headphones all components.


SONY Float Run (Sony WIOE610/B) adopts a unique lightweight earhook and backhook design, which can better balance the weight distribution of earhooks and backhooks, with a weight of only 31.8g. The wide contact surface design of the earhook effectively disperses the pressure on the ear, bringing a comfortable and stable wearing effect. The sound unit is suspended next to the ear canal when worn, and it is not in the ear to avoid ear canal extrusion and stethoscope effect, and it is still comfortable to listen to after long-term wearing.

In terms of internal structure configuration, it is equipped with a 16mm large-size dynamic driver to make up for the audio damage of open listening and provide a more natural and open audio effect. The left earhook cavity has a built-in lithium-ion battery with a capacity of 130mAh, which comes from VDL. Equipped with a circuit protection board responsible for battery overcharge, overdischarge, overcurrent and other protection functions.

The main board unit is installed in the right earhook, which uses Realtek RTL8763BFS bluetooth audio SoC and supports Bluetooth 5.0. Built-in 32-bit ARM processor and 24-bit DSP, supports analog and digital microphone input, and integrates lithium battery charging management. It is also equipped with an electret microphone for voice pickup.

Source: 52audio

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