Sports TWS Bluetooth In-Ear Gaming Headphones wireless

OverviewErgonomic design, soft silicone earplugs, comfortable to wear Specifications: Supported protocols: A2DP / HFP / HSP / AVRC Product size: about 23 x 12 x 26mm Storage and charging box size: about 92 x 40 x 31mm BT version: V5.0 Voice prompt: support Operating range: 10 meters (Obstacle Free) Battery capacity: 50mAh polymer lithium battery Charging box battery: 300mAh Sound unit: 8mm moving coil speaker Speaker impedance: 32 ohms Speaker sensitivity: 105db Speaker frequency: 20Hz- 20KHz Microphone sensitivity: -42± 2db BT frequency: 2.4- 2.48GHz Music Playtime: about 3-4 hours Talk time: 4 hours (actual measurement) Standby time: 80 hours