Custom Bluetooth Earphone UK Supplier | 3.5g Lightweight Class 2 Wireless Solution

B2B-Optimized Product Description:
Customizable Bluetooth 5.3 TWS Solution featuring ​JieLi 6973 chipset with ​dual codec support (SBC/AAC). Provides ​3× recharges via ​300mAh case, ​17h total playtime and ​3.5g ultra-light design. Ideal for ​wholesale buyers seeking ​OEM wireless earbuds.
OEM TWS Bluetooth Earphone Technical Specifications
Core Specifications:
​Bluetooth Version: 5.3
​Bluetooth Solution: JieLi 6973
​Audio Codecs: SBC, AAC
​Effective Range: ≥10m
​Earbud Battery: 30mAh (with protection circuit)
​Earbud Charging Time: ≈1.5 hours
​Charging Case Input: DC5V 1A
​Recharge Cycles: 3 times
​Driver Size: Φ10mm
​Impedance: 32Ω ±15%
​Frequency Response: 20Hz-20kHz
​Weight:
Single Earbud: 3.5g
Full Set: 42g
Connectivity:
​Supported Profiles: HFP, A2DP, AVRCP
​Transmission Power: Class 2
​Operating Frequency: 2.4GHz
​Charging Voltage: DC5V ±0.2V
Power System:
​Charging Case Battery: 300mAh (with protection circuit)
​Case Charging Time: ≈1.5 hours
​Standby Time: ≈40 hours
​Total Playtime: ≈17 hours
Acoustic Performance:
​Sensitivity: 110dB ±3dB
Physical Dimensions:
​Charging Case: 59.5×47.7×26.5mm
​Single Earbud: 32.7×18.2×21mm