The 2-in-1 Bluetooth Speaker with TWS Earphones combines a portable wireless speaker and true wireless earbuds in one convenient design. Featuring Bluetooth 5.3, a 5W speaker, F13 copper ring earbud drivers, and a 10–15m transmission range, it offers flexible listening for home, office, travel, and everyday entertainment. The earbuds provide approximately 4–5 hours of playback, while the speaker delivers 2–3 hours of music. Made from ABS plastic and silicone, this versatile audio product is ideal for consumer electronics brands, retailers, and gift markets seeking innovative wireless audio solutions.
The Sport TWS Earphone features Bluetooth 5.4 connectivity, a compact charging case, and a lightweight ABS plastic design for convenient everyday wireless listening. With a transmission range of up to 10 meters, 2.5–4 hours of playback time, and a 200mAh charging case, it is suitable for commuting, leisure, and daily use. Jaskey Limited offers OEM/ODM cooperation opportunities for brands, wholesalers, importers, and retailers seeking reliable wireless audio products from an experienced China consumer electronics manufacturer.
Thanks for visiting our booth in Hong Kong Electronic 2026 Fair (Autumn Edition)
Bluetooth wood headphones, wooden Bluetooth headphones, wood and metal headphones, Bluetooth on-ear headphones, China headphone manufacturer, OEM Bluetooth headphones, ODM headphone manufacturer, private label headphones, Qualcomm aptX headphones, 40mm dynamic driver headphones, custom wireless headphones, headphone product development, China audio manufacturer
The China Waterproof Portable Bluetooth Speaker combines durable design with versatile audio performance for outdoor and everyday use. Featuring Bluetooth 5.3, hands-free calling, TWS connectivity, TF card and AUX support, it offers flexible listening options in a compact ABS and silicone design. With a 1800mAh battery and water-resistant construction, it is suitable for travel, camping, beach outings, and daily entertainment. Jaskey Limited provides OEM/ODM customization services for brands, distributors, and importers seeking reliable portable Bluetooth speaker solutions.
The WiFi Alexa Smart Speaker combines voice control, wireless audio, and smart home connectivity for convenient everyday living. Featuring support for Alexa skills, compatible Tuya smart home devices, multilingual interaction, and app-based control, it offers a practical solution for modern connected homes. With a compact design, 5W speaker output, and 2.4GHz WiFi connectivity, it is suitable for bedrooms, living rooms, and home office environments.
The Outdoor Speaker with Light combines portable audio and ambient lighting in a compact ABS plastic design. Featuring Bluetooth 5.0, USB and TF card playback, a 5W speaker, and a 1200mAh rechargeable battery, it offers versatile entertainment for outdoor activities, home gatherings, camping and travel. With 4–5 hours of working time and multiple playback options, this portable Bluetooth speaker is ideal for retailers, distributors and brands seeking differentiated audio products. OEM/ODM customization and private-label opportunities are available for global markets.
Jaskey Limited is a China-based consumer electronics OEM/ODM manufacturer specializing in built-in furniture wireless chargers and innovative audio products. Our compact wireless charging solutions feature 5W wireless charging, USB and Type-C outputs, and space-saving designs, making them suitable for desks, bedside tables, and modern furniture applications. Since 2008, we have focused on product innovation, quality management, and customized solutions for global markets.
The 4-in-1 Bluetooth Wireless Over-Ear Headphones combine Bluetooth 4.1, TF card playback, AUX input, and FM radio for versatile listening options. Featuring a built-in microphone, convenient control buttons, and up to 15 hours of playback, these headphones are suitable for daily entertainment, commuting, and home use. Jaskey Limited offers OEM/ODM customization services for brands, wholesalers, importers, and retailers seeking flexible headphone solutions for global markets.
Explore the latest soundbar speaker industry trends, from Bluetooth connectivity and compact lifestyle design to social commerce and e-commerce opportunities. Discover how China OEM/ODM manufacturers support brands, retailers, distributors, and private-label sellers with product development, customization, and scalable audio manufacturing for global markets.
Here are 6 working modes to enable the professional portable speaker amplifier protection function:
1. Overcurrent protection
When the load of the portable speaker amplifier is too low but does not reach the short-circuit state, the short-circuit protection will not act at this time, but the output current will be very large and exceed the safe use value of the portable speaker amplifier. At this time, the overcurrent protection circuit will intervene in the work. The usual practice is: Control the input voltage and output current so that the power amplifier always works within a safe range.
2. Overheating protection
The well-designed amplifier will not have overheating protection under normal use. It will only act when the external use environment is bad or the internal failure occurs. The hottest part of the whole portable speaker amplifier is the C pole (collector) of the output stage transistor, so the temperature sensor for overheating protection is generally installed in the place closest to the C pole of the transistor or the hottest place on the radiator. The threshold value of overheating protection is generally 95°C, but also 105°C, and the extreme temperature of the transistor is 105°C.
3. Soft start protection value
Audio equipment with a large current draw can flow 4-10 times the average current value at the moment when the power is turned on. This is a shock to the power grid and the equipment itself, and will damage the equipment in severe cases. The soft-start circuit can suppress the inrush of current at the moment when the equipment is switched on and off, so that it can reach normal smoothly to protect the equipment and not cause grid fluctuations. This function is usually achieved with the negative temperature characteristic of the thermistor (NTC).
4. DC protection
When the portable speaker amplifier output stage is damaged or the static bias is shifted, it is possible to deliver a DC signal. For the speaker, its working method only produces impedance to the AC signal, and it does not produce any impedance (equal to zero impedance) for the DC signal. At this time, the current is infinite, so the coil of the speaker is equivalent to a DC signal. A heating wire will burn quickly. So accurate and fast DC protection circuit is very important. The DC protection start value of the portable speaker amplifier is usually set at 2V. When it is greater than or equal to this value, the portable speaker amplifier will cut off the output to protect the speaker. There are also amplifiers that will cut off the output by blowing the built-in DC fuse.
If the DC protection circuit of a portable speaker amplifier is normal, but the coil of the speaker is burned out, there are only two reasons: the power input to the speaker is too large, or the signal output by the portable speaker amplifier is clipped into a square wave.
Short circuit protection
When the output of the portable speaker amplifier is short-circuited for some reason, the current output by the portable speaker amplifier will circulate in its own circuit and become infinite. Such a situation is very dangerous, so there must be accurate and fast short circuit protection circuits to protect the best portable speaker amplifier equipment. Under normal circumstances, when a short circuit occurs in the portable speaker amplifier, first it will control the input signal to reduce its amplitude even to zero. If the situation does not improve (the current flowing through the best portable speaker amplifier still exceeds the safe value), it will suppress the output current, allowing The current flowing inside the amplifier is always lower than the safe value of the output stage transistors.
5. Distortion Compressor
The input level value of audio equipment has a specified range. If it exceeds this range, the signal will be clipped, and in severe cases, it will become a square wave. The function of the distortion limiter is to ensure that the level of the input signal is always controlled within the linear working area allowed by the audio equipment. The general standard is to start when THD1%.
