Dell Latitude D620 D630 Precision M2300 PC764 Battery 5200mAh 
Description
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1, 8D surround sound, 5.0 dual-ear chip, large capacity, true wireless Bluetooth headset 2, Graphene bass diaphragm, HIFI high-frequency technology, 10MM dynamic speaker unit 3, Two connection methods: single / double free to use, single ear listening to enjoy alone, listening to HiFi stereo in both ears. 4, 5.0 automatic boot pairing, built-in active noise reduction IC, HD call. 5, 5.0 Bluetooth game without delay, TWS BT5.0 Headphone:
Wireless dual ear design, left and right ear channel separation. You can use the headset solely, or used them in pairs. BT 5.0 brings high data transfer speed, stable connection and low power consumption.
Fast & Easy Paring:
Auto power on and fast pairing between left and right earbuds. Easy and quick to pair with BT-enabled audio devices. Effective distance is about 20 meters in open space.
Long Battery Life:
50mAh battery in each earphone ensures about 4-5 hours of working time. Charged automatically in the charging box which enables dual headsets charging for many times. Supports up to 100 hours playtime in total.
Born for Sports:
3.5g lightweight and mini size fit well to your ear canal and provide you long time wearing comfort. It guarantees stability when doing sports. With charging box, easy to store and carry anywhere.
7.2mm Drive Unit & DSP Noise Reduction:
7.2mm dynamic drive unit provides powerful low frequency, delicate, soft medium and high frequency. With DSP intelligent noise reduction technology, it can remove the ambient noise, no need to worry about call quality.
Specifications:
Model Number: TWS-XT01
BT Version: BT5.0
Transmitting Distance: 10m/33ft
BT Protocol: HFP, A2DP, HSP, AVCRP
Frequency Range: 20-20000Hz
Sensitivity: 98dB
Impedance: 16O
Charging Box Capacity: 3.7V 450mAh
Earphone Battery Capacity: 2 * 3.7V 50mAh
Music Play Time: about 4-5 hours (depends on music volume)
Charging Time: about 1.5 hours for earphones, 2 hours for charging box
Color: Black
Earphone Item Size: 26.6*21.6*16.4mm/1.04*0.8*0.64in
Earphone Weight: 3.5g/0.14oz (Each Earbuds)
Charging Box Size: 62*40*27.2mm/2.44*1.57*1.07in
Charging Box Weight: 70.4g/1.24oz
Package include:
2x Mini Earphones (Left and Right Ear-buds)
1x Charging box
1x Type C charging cable
1x User Manual
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