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Total Power Output RMS Frequency Response: 40HZ – 20KHZ Signal-to-Noise Ratio: Greater than 80 dB Control: POWER/MODE, VOL+/VOL- , NEXT/PREVIOUS , PLAY/PAUSE Sound System: Stereo Power On/Off Indicator: Yes Driver Unit: Transducer: 2 x 50 mm, 1 x 45 mm Battery: Capacity: 4000 mAh Battery Type: Lithium-ion Polymer Battery Charge Time: 5 to 7 hours at 5 V, 1 A Playing Time: Music playing time: up to 8 hours Connectivity: Bluetooth Support: A2DP V1.3, AVRCP V1.5, HFP V1.6, HSP V1.2 Bluetooth Version: Bluetooth CSR Ver4.0+EDR Chip Note: Not compatible with the devices having bluetooth version lower than 4.0
POLYURETHANE FOAM Soft foam delivers superior long-wearing comfort and solid performance. SMOOTH, SOIL-RESISTANT SKIN Prevents dirt or other substances from accumulating on skin or entering ear canal.
The Bilsom 304 Series earplugs are ideal for workers who need to block out loud noise and demand the best protection and comfort available in an earplug. Europe most-used polyurethane earplug, the 300 series earplug, offers superior noise-blocking performance in a single-use earplug.