Hieha OY712 Sports Foldable Waterproof Referee Bluetooth Headset with Mic, 40mm Driver, 10H Playtime, Micro USB, 3.5mm Audio Cable, TF Card Support Up to 16GB, 10m Range
Hieha OY712 Sports Foldable Waterproof Referee Bluetooth Headset with Mic, 40mm Driver, 10H Playtime, Micro USB, 3.5mm Audio Cable, TF Card Support Up to 16GB, 10m Range
Hieha OY712 Sports Foldable Waterproof Bluetooth Headset with Mic for Referees and Active Use
This Bluetooth headset is built for active users such as sports referees, coaches, or anyone who needs reliable hands-free communication in outdoor conditions. The waterproof design and foldable construction mean it can handle rain or sweat and pack away easily when not in use. With Bluetooth 4.01 and CSR chipset, it provides a stable connection up to 10 metres away, so you can move freely without losing audio. The 40mm driver delivers clear sound across a 20Hz to 20kHz range, suitable for voice calls and music. It also offers long battery life, with up to 11 hours of talk time or 10 hours of playback, and a standby time of up to 250 hours. For flexibility, it includes a detachable 3.5mm audio cable and supports TF cards up to 16GB for offline playback.
Features and Construction
The headset combines practical features with a rugged build designed for frequent use. Its foldable shape makes it easy to store in a bag, while the waterproof coating protects against light rain and sweat. The ear cushions are padded for comfort during extended wear.
Waterproof and Foldable Design
The headset is rated as waterproof, making it suitable for outdoor sports use where exposure to rain or moisture is likely. When folded, it measures 18.5 x 16.0 x 7.5 cm, which is compact enough to fit into most bags or compartments. The folding mechanism is reinforced to withstand repeated folding without loosening.
Driver and Audio Performance
A 40mm driver unit provides a frequency range from 20Hz to 20kHz, covering bass and treble for clear voice and music reproduction. The impedance is 32 ohms, making it compatible with smartphones, tablets, and audio devices. The microphone has a sensitivity of -54dB +/-2dB and an impedance of 2.2k ohms, ensuring clear voice pickup for calls.
Battery and Charging
The built-in 160mAh rechargeable lithium battery offers up to 11 hours of talk time or 10 hours of music playback on a full charge. It takes about 2 hours to charge via the Micro USB port. The standby time of up to 250 hours means you can leave it powered on between uses without frequent recharging.
Connectivity and Compatibility
The headset supports multiple connection methods to suit different scenarios. It works wirelessly via Bluetooth 4.01 with profiles including HSP, HFP, A2DP, and AVRCP, and also supports wired connection through the included 3.5mm audio cable. Additionally, it can play music directly from a TF memory card up to 16GB.
Bluetooth Range and Profiles
With Bluetooth 4.01 and EDR (Enhanced Data Rate), the headset maintains a stable connection up to 10 metres in open space. It supports hands-free calling (HFP) and stereo audio streaming (A2DP), making it suitable for both phone calls and music listening. The AVRCP profile allows remote control of playback functions from the headset buttons.
Wired and TF Card Playback
The detachable 1.0-metre audio cable with a 3.5mm plug provides a wired alternative when the battery is low or for devices without Bluetooth. The headset can also read TF cards up to 16GB, allowing you to play music directly without a connected device. This feature is useful for referees who need pre-loaded audio queues or music during breaks.
Microphone for Hands-Free Calls
The built-in microphone has a sensitivity of -54dB +/-2dB and an impedance of 2.2k ohms, enabling clear voice transmission during calls. It is positioned on the earcup to pick up speech without being obstructed. The headset supports voice prompts for pairing and call status.
Practical Benefits and Buying Value
This headset offers practical advantages for active users who need reliable audio gear. Its long battery life reduces the need for frequent charging, and the waterproof design adds confidence in outdoor use. The foldable shape and wired option provide flexibility for different environments.
Long Battery Life for Extended Use
With up to 11 hours of talk time or 10 hours of music playback, the headset can last through multiple matches, training sessions, or long commutes without needing a recharge. The 2-hour charge time means it can be quickly topped up during breaks. Standby time of up to 250 hours allows for days of use without worrying about battery drain.
Low Maintenance and Easy Care
The waterproof coating protects the headset from moisture and sweat, reducing the risk of damage and extending its working life. Cleaning is straightforward: simply wipe the ear cushions and exterior with a damp cloth. The Micro USB charging port and 3.5mm audio jack are standard connections, making cables easy to replace if lost.
Why Choose This Headset
For sports officials, outdoor supervisors, or active listeners, this headset combines waterproof protection, long battery life, and flexible connectivity in a foldable package that is easy to carry. It avoids the bulk of larger headphones while still providing full-size 40mm drivers for clear audio. The TF card support and wired option add versatility that many headsets lack.
